498995631 has 6 divisors (see below), whose sum is σ = 720771480. Its totient is φ = 332663748.

The previous prime is 498995621. The next prime is 498995633. The reversal of 498995631 is 136599894.

498995631 is a `hidden beast` number, since 498 + 9 + 95 + 63 + 1 = 666.

It is not a de Polignac number, because 498995631 - 2¹⁷ = 498864559 is a prime.

It is a super-2 number, since 2×498995631² = 497993279514176322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498995633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27721971 + ... + 27721988.

It is an arithmetic number, because the mean of its divisors is an integer number (120128580).

Almost surely, 2^498995631 is an apocalyptic number.

498995631 is a deficient number, since it is larger than the sum of its proper divisors (221775849).

498995631 is a wasteful number, since it uses less digits than its factorization.

498995631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55443965 (or 55443962 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 498995631 is about 22338.2101118241. The cubic root of 498995631 is about 793.1687242725.

The spelling of 498995631 in words is "four hundred ninety-eight million, nine hundred ninety-five thousand, six hundred thirty-one".