890966864 has 20 divisors (see below), whose sum is σ = 1730106900. Its totient is φ = 444487680.

The previous prime is 890966861. The next prime is 890966873. The reversal of 890966864 is 468669098.

It can be written as a sum of positive squares in 2 ways, for example, as 724040464 + 166926400 = 26908^2 + 12920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890966861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54827 + ... + 69194.

It is an arithmetic number, because the mean of its divisors is an integer number (86505345).

Almost surely, 2^890966864 is an apocalyptic number.

It is an amenable number.

890966864 is a deficient number, since it is larger than the sum of its proper divisors (839140036).

890966864 is a wasteful number, since it uses less digits than its factorization.

890966864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124478 (or 124472 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 56.

The square root of 890966864 is about 29849.0680591539. The cubic root of 890966864 is about 962.2483701351.

The spelling of 890966864 in words is "eight hundred ninety million, nine hundred sixty-six thousand, eight hundred sixty-four".