497701881 has 32 divisors (see below), whose sum is σ = 747479040. Its totient is φ = 327272400.

The previous prime is 497701819. The next prime is 497701907. The reversal of 497701881 is 188107794.

497701881 is a `hidden beast` number, since 497 + 70 + 18 + 81 = 666.

It is not a de Polignac number, because 497701881 - 2¹⁵ = 497669113 is a prime.

It is a super-2 number, since 2×497701881² = 495414324701876322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (497701801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 788436 + ... + 789066.

It is an arithmetic number, because the mean of its divisors is an integer number (23358720).

Almost surely, 2^497701881 is an apocalyptic number.

It is an amenable number.

497701881 is a deficient number, since it is larger than the sum of its proper divisors (249777159).

497701881 is a wasteful number, since it uses less digits than its factorization.

497701881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 497701881 is about 22309.2330885667. The cubic root of 497701881 is about 792.4826460125.

The spelling of 497701881 in words is "four hundred ninety-seven million, seven hundred one thousand, eight hundred eighty-one".