964396691 has 2 divisors, whose sum is σ = 964396692. Its totient is φ = 964396690.

The previous prime is 964396673. The next prime is 964396703. The reversal of 964396691 is 196693469.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-964396691 is a prime.

It is a super-2 number, since 2×964396691² = 1860121955223498962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (964396651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482198345 + 482198346.

It is an arithmetic number, because the mean of its divisors is an integer number (482198346).

Almost surely, 2^964396691 is an apocalyptic number.

964396691 is a deficient number, since it is larger than the sum of its proper divisors (1).

964396691 is an equidigital number, since it uses as much as digits as its factorization.

964396691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1889568, while the sum is 53.

The square root of 964396691 is about 31054.7370138599. The cubic root of 964396691 is about 987.9885326380.

The spelling of 964396691 in words is "nine hundred sixty-four million, three hundred ninety-six thousand, six hundred ninety-one".