1630964831 has 2 divisors, whose sum is σ = 1630964832. Its totient is φ = 1630964830.

The previous prime is 1630964791. The next prime is 1630964833. The reversal of 1630964831 is 1384690361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1630964831 - 2⁶ = 1630964767 is a prime.

It is a super-2 number, since 2×1630964831² = 5320092559917717122, which contains 22 as substring.

Together with 1630964833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630964833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815482415 + 815482416.

It is an arithmetic number, because the mean of its divisors is an integer number (815482416).

Almost surely, 2^1630964831 is an apocalyptic number.

1630964831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630964831 is an equidigital number, since it uses as much as digits as its factorization.

1630964831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1630964831 is about 40385.2055956138. The cubic root of 1630964831 is about 1177.1040811119.

The spelling of 1630964831 in words is "one billion, six hundred thirty million, nine hundred sixty-four thousand, eight hundred thirty-one".