964288681 has 2 divisors, whose sum is σ = 964288682. Its totient is φ = 964288680.

The previous prime is 964288651. The next prime is 964288691. The reversal of 964288681 is 186882469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837523600 + 126765081 = 28940^2 + 11259^2 .

It is a cyclic number.

It is not a de Polignac number, because 964288681 - 2⁵ = 964288649 is a prime.

It is a super-2 number, since 2×964288681² = 1859705320609439522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (964288651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482144340 + 482144341.

It is an arithmetic number, because the mean of its divisors is an integer number (482144341).

Almost surely, 2^964288681 is an apocalyptic number.

It is an amenable number.

964288681 is a deficient number, since it is larger than the sum of its proper divisors (1).

964288681 is an equidigital number, since it uses as much as digits as its factorization.

964288681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 52.

The square root of 964288681 is about 31052.9979390074. The cubic root of 964288681 is about 987.9516471854.

The spelling of 964288681 in words is "nine hundred sixty-four million, two hundred eighty-eight thousand, six hundred eighty-one".