497972986 has 24 divisors (see below), whose sum is σ = 869894100. Its totient is φ = 213175872.

The previous prime is 497972983. The next prime is 497972989. The reversal of 497972986 is 689279794.

It is an interprime number because it is at equal distance from previous prime (497972983) and next prime (497972989).

It can be written as a sum of positive squares in 2 ways, for example, as 314885025 + 183087961 = 17745^2 + 13531^2 .

It is not an unprimeable number, because it can be changed into a prime (497972983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104790 + ... + 109438.

Almost surely, 2^497972986 is an apocalyptic number.

497972986 is a deficient number, since it is larger than the sum of its proper divisors (371921114).

497972986 is a wasteful number, since it uses less digits than its factorization.

497972986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758 (or 5751 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 61.

The square root of 497972986 is about 22315.3083330704. The cubic root of 497972986 is about 792.6265119276.

The spelling of 497972986 in words is "four hundred ninety-seven million, nine hundred seventy-two thousand, nine hundred eighty-six".