497639507 has 16 divisors (see below), whose sum is σ = 543552000. Its totient is φ = 453799584.

The previous prime is 497639503. The next prime is 497639557. The reversal of 497639507 is 705936794.

It is a cyclic number.

It is not a de Polignac number, because 497639507 - 2² = 497639503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (497639501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207638 + ... + 210020.

It is an arithmetic number, because the mean of its divisors is an integer number (33972000).

Almost surely, 2^497639507 is an apocalyptic number.

497639507 is a deficient number, since it is larger than the sum of its proper divisors (45912493).

497639507 is a wasteful number, since it uses less digits than its factorization.

497639507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The square root of 497639507 is about 22307.8351033891. The cubic root of 497639507 is about 792.4495389260.

The spelling of 497639507 in words is "four hundred ninety-seven million, six hundred thirty-nine thousand, five hundred seven".