498700845 has 18 divisors (see below), whose sum is σ = 864674538. Its totient is φ = 265893888.

The previous prime is 498700841. The next prime is 498700861. The reversal of 498700845 is 548007894.

It can be written as a sum of positive squares in 3 ways, for example, as 21846276 + 476854569 = 4674^2 + 21837^2 .

It is not a de Polignac number, because 498700845 - 2² = 498700841 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 498700845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498700841) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 148141 + ... + 151469.

Almost surely, 2^498700845 is an apocalyptic number.

498700845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

498700845 is a deficient number, since it is larger than the sum of its proper divisors (365973693).

498700845 is an frugal number, since it uses more digits than its factorization.

498700845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669 (or 3337 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 498700845 is about 22331.6108912904. The cubic root of 498700845 is about 793.0125030694.

Multiplying 498700845 by its sum of digits (45), we get a square (22441538025 = 149805²).

498700845 divided by its sum of digits (45) gives a square (11082241 = 3329²).

The spelling of 498700845 in words is "four hundred ninety-eight million, seven hundred thousand, eight hundred forty-five".