810896431 has 2 divisors, whose sum is σ = 810896432. Its totient is φ = 810896430.

The previous prime is 810896407. The next prime is 810896473. The reversal of 810896431 is 134698018.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 810896431 - 2²⁷ = 676678703 is a prime.

It is a super-2 number, since 2×810896431² = 1315106043617075522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (810896491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405448215 + 405448216.

It is an arithmetic number, because the mean of its divisors is an integer number (405448216).

Almost surely, 2^810896431 is an apocalyptic number.

810896431 is a deficient number, since it is larger than the sum of its proper divisors (1).

810896431 is an equidigital number, since it uses as much as digits as its factorization.

810896431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 810896431 is about 28476.2432739995. The cubic root of 810896431 is about 932.5135039625.

The spelling of 810896431 in words is "eight hundred ten million, eight hundred ninety-six thousand, four hundred thirty-one".