496731391 has 24 divisors (see below), whose sum is σ = 573419520. Its totient is φ = 429096096.

The previous prime is 496731371. The next prime is 496731409. The reversal of 496731391 is 193137694.

It is a de Polignac number, because none of the positive numbers 2^k-496731391 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (496731331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181330 + ... + 184048.

It is an arithmetic number, because the mean of its divisors is an integer number (23892480).

Almost surely, 2^496731391 is an apocalyptic number.

496731391 is a deficient number, since it is larger than the sum of its proper divisors (76688129).

496731391 is a wasteful number, since it uses less digits than its factorization.

496731391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2802 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 496731391 is about 22287.4716152371. The cubic root of 496731391 is about 791.9672123411.

The spelling of 496731391 in words is "four hundred ninety-six million, seven hundred thirty-one thousand, three hundred ninety-one".