496139657 has 16 divisors (see below), whose sum is σ = 544465152. Its totient is φ = 449305920.

The previous prime is 496139653. The next prime is 496139663. The reversal of 496139657 is 756931694.

It is a cyclic number.

It is not a de Polignac number, because 496139657 - 2² = 496139653 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (496139653) 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, 512588 + ... + 513554.

It is an arithmetic number, because the mean of its divisors is an integer number (34029072).

Almost surely, 2^496139657 is an apocalyptic number.

It is an amenable number.

496139657 is a deficient number, since it is larger than the sum of its proper divisors (48325495).

496139657 is a wasteful number, since it uses less digits than its factorization.

496139657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688.

The product of its digits is 1224720, while the sum is 50.

The square root of 496139657 is about 22274.1926228539. The cubic root of 496139657 is about 791.6526089520.

The spelling of 496139657 in words is "four hundred ninety-six million, one hundred thirty-nine thousand, six hundred fifty-seven".