495421831 has 2 divisors, whose sum is σ = 495421832. Its totient is φ = 495421830.

The previous prime is 495421799. The next prime is 495421847. The reversal of 495421831 is 138124594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495421831 - 2⁵ = 495421799 is a prime.

It is a super-2 number, since 2×495421831² = 490885581262785122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495421891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247710915 + 247710916.

It is an arithmetic number, because the mean of its divisors is an integer number (247710916).

Almost surely, 2^495421831 is an apocalyptic number.

495421831 is a deficient number, since it is larger than the sum of its proper divisors (1).

495421831 is an equidigital number, since it uses as much as digits as its factorization.

495421831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 495421831 is about 22258.0733892222. The cubic root of 495421831 is about 791.2706310824.

The spelling of 495421831 in words is "four hundred ninety-five million, four hundred twenty-one thousand, eight hundred thirty-one".