896871631 has 2 divisors, whose sum is σ = 896871632. Its totient is φ = 896871630.

The previous prime is 896871629. The next prime is 896871641. The reversal of 896871631 is 136178698.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 896871631 - 2¹ = 896871629 is a prime.

It is a super-2 number, since 2×896871631² = 1608757444985200322, which contains 22 as substring.

Together with 896871629, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (896871641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448435815 + 448435816.

It is an arithmetic number, because the mean of its divisors is an integer number (448435816).

Almost surely, 2^896871631 is an apocalyptic number.

896871631 is a deficient number, since it is larger than the sum of its proper divisors (1).

896871631 is an equidigital number, since it uses as much as digits as its factorization.

896871631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 49.

The square root of 896871631 is about 29947.8151289873. The cubic root of 896871631 is about 964.3694166631.

The spelling of 896871631 in words is "eight hundred ninety-six million, eight hundred seventy-one thousand, six hundred thirty-one".