964927081 has 4 divisors (see below), whose sum is σ = 968771664. Its totient is φ = 961082500.

The previous prime is 964927003. The next prime is 964927091. The reversal of 964927081 is 180729469.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180729469 = 23 ⋅7857803.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-964927081 is a prime.

It is a super-2 number, since 2×964927081² = 1862168543294361122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (964927091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921915 + ... + 1922416.

It is an arithmetic number, because the mean of its divisors is an integer number (242192916).

Almost surely, 2^964927081 is an apocalyptic number.

It is an amenable number.

964927081 is a deficient number, since it is larger than the sum of its proper divisors (3844583).

964927081 is a wasteful number, since it uses less digits than its factorization.

964927081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844582.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 964927081 is about 31063.2754390132. The cubic root of 964927081 is about 988.1696210521.

The spelling of 964927081 in words is "nine hundred sixty-four million, nine hundred twenty-seven thousand, eighty-one".