964100091 has 4 divisors (see below), whose sum is σ = 1285466792. Its totient is φ = 642733392.

The previous prime is 964100087. The next prime is 964100101. The reversal of 964100091 is 190001469.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 964100091 - 2² = 964100087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (964100491) 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, 160683346 + ... + 160683351.

It is an arithmetic number, because the mean of its divisors is an integer number (321366698).

Almost surely, 2^964100091 is an apocalyptic number.

964100091 is a deficient number, since it is larger than the sum of its proper divisors (321366701).

964100091 is a wasteful number, since it uses less digits than its factorization.

964100091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321366700.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 964100091 is about 31049.9612077052. The cubic root of 964100091 is about 987.8872370309.

The spelling of 964100091 in words is "nine hundred sixty-four million, one hundred thousand, ninety-one".