498861897 has 4 divisors (see below), whose sum is σ = 665149200. Its totient is φ = 332574596.

The previous prime is 498861893. The next prime is 498861919. The reversal of 498861897 is 798168894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 498861897 - 2² = 498861893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 498861897.

It is not an unprimeable number, because it can be changed into a prime (498861893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83143647 + ... + 83143652.

It is an arithmetic number, because the mean of its divisors is an integer number (166287300).

Almost surely, 2^498861897 is an apocalyptic number.

It is an amenable number.

498861897 is a deficient number, since it is larger than the sum of its proper divisors (166287303).

498861897 is a wasteful number, since it uses less digits than its factorization.

498861897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166287302.

The product of its digits is 6967296, while the sum is 60.

The square root of 498861897 is about 22335.2165201056. The cubic root of 498861897 is about 793.0978598553.

The spelling of 498861897 in words is "four hundred ninety-eight million, eight hundred sixty-one thousand, eight hundred ninety-seven".