964645931 has 2 divisors, whose sum is σ = 964645932. Its totient is φ = 964645930.

The previous prime is 964645901. The next prime is 964645939. The reversal of 964645931 is 139546469.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 964645931 - 2⁶ = 964645867 is a prime.

It is a super-2 number, since 2×964645931² = 1861083544389713522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (964645939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482322965 + 482322966.

It is an arithmetic number, because the mean of its divisors is an integer number (482322966).

Almost surely, 2^964645931 is an apocalyptic number.

964645931 is a deficient number, since it is larger than the sum of its proper divisors (1).

964645931 is an equidigital number, since it uses as much as digits as its factorization.

964645931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 47.

The square root of 964645931 is about 31058.7496689741. The cubic root of 964645931 is about 988.0736376762.

The spelling of 964645931 in words is "nine hundred sixty-four million, six hundred forty-five thousand, nine hundred thirty-one".