497378081 has 8 divisors (see below), whose sum is σ = 503789664. Its totient is φ = 490976640.

The previous prime is 497378047. The next prime is 497378099. The reversal of 497378081 is 180873794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 497378081 - 2²² = 493183777 is a prime.

It is a super-2 number, since 2×497378081² = 494769910918485122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497378281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165926 + ... + 168896.

It is an arithmetic number, because the mean of its divisors is an integer number (62973708).

Almost surely, 2^497378081 is an apocalyptic number.

It is an amenable number.

497378081 is a deficient number, since it is larger than the sum of its proper divisors (6411583).

497378081 is a wasteful number, since it uses less digits than its factorization.

497378081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 497378081 is about 22301.9748228716. The cubic root of 497378081 is about 792.3107482298.

The spelling of 497378081 in words is "four hundred ninety-seven million, three hundred seventy-eight thousand, eighty-one".