806966631 has 20 divisors (see below), whose sum is σ = 1212457752. Its totient is φ = 534858768.

The previous prime is 806966627. The next prime is 806966687. The reversal of 806966631 is 136669608.

It is not a de Polignac number, because 806966631 - 2² = 806966627 is a prime.

It is a super-3 number, since 3×806966631³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806966231) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14781 + ... + 42806.

Almost surely, 2^806966631 is an apocalyptic number.

806966631 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

806966631 is a deficient number, since it is larger than the sum of its proper divisors (405491121).

806966631 is a wasteful number, since it uses less digits than its factorization.

806966631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57772 (or 57763 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 806966631 is about 28407.1580943959. The cubic root of 806966631 is about 931.0046686992.

The spelling of 806966631 in words is "eight hundred six million, nine hundred sixty-six thousand, six hundred thirty-one".