497766161 has 32 divisors (see below), whose sum is σ = 565678080. Its totient is φ = 435758400.

The previous prime is 497766149. The next prime is 497766167. The reversal of 497766161 is 161667794.

It is a cyclic number.

It is not a de Polignac number, because 497766161 - 2⁶ = 497766097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497766167) 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, 1892516 + ... + 1892778.

It is an arithmetic number, because the mean of its divisors is an integer number (17677440).

Almost surely, 2^497766161 is an apocalyptic number.

It is an amenable number.

497766161 is a deficient number, since it is larger than the sum of its proper divisors (67911919).

497766161 is a wasteful number, since it uses less digits than its factorization.

497766161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437.

The product of its digits is 381024, while the sum is 47.

The square root of 497766161 is about 22310.6737011682. The cubic root of 497766161 is about 792.5167618782.

The spelling of 497766161 in words is "four hundred ninety-seven million, seven hundred sixty-six thousand, one hundred sixty-one".