497891015 has 4 divisors (see below), whose sum is σ = 597469224. Its totient is φ = 398312808.

The previous prime is 497890973. The next prime is 497891027. The reversal of 497891015 is 510198794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 497891015 - 2²⁶ = 430782151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49789097 + ... + 49789106.

It is an arithmetic number, because the mean of its divisors is an integer number (149367306).

Almost surely, 2^497891015 is an apocalyptic number.

497891015 is a deficient number, since it is larger than the sum of its proper divisors (99578209).

497891015 is an equidigital number, since it uses as much as digits as its factorization.

497891015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99578208.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 497891015 is about 22313.4716034955. The cubic root of 497891015 is about 792.5830183011.

The spelling of 497891015 in words is "four hundred ninety-seven million, eight hundred ninety-one thousand, fifteen".