498721745 has 16 divisors (see below), whose sum is σ = 616533120. Its totient is φ = 387043200.

The previous prime is 498721733. The next prime is 498721753. The reversal of 498721745 is 547127894.

It is a de Polignac number, because none of the positive numbers 2^k-498721745 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 498721745.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29900 + ... + 43490.

It is an arithmetic number, because the mean of its divisors is an integer number (38533320).

Almost surely, 2^498721745 is an apocalyptic number.

It is an amenable number.

498721745 is a deficient number, since it is larger than the sum of its proper divisors (117811375).

498721745 is a wasteful number, since it uses less digits than its factorization.

498721745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13816.

The product of its digits is 564480, while the sum is 47.

The square root of 498721745 is about 22332.0788329255. The cubic root of 498721745 is about 793.0235810065.

The spelling of 498721745 in words is "four hundred ninety-eight million, seven hundred twenty-one thousand, seven hundred forty-five".