191396964 has 24 divisors (see below), whose sum is σ = 487192608. Its totient is φ = 57999040.

The previous prime is 191396963. The next prime is 191397029. The reversal of 191396964 is 469693191.

191396964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (191396963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724857 + ... + 725120.

It is an arithmetic number, because the mean of its divisors is an integer number (20299692).

Almost surely, 2^191396964 is an apocalyptic number.

It is an amenable number.

191396964 is an abundant number, since it is smaller than the sum of its proper divisors (295795644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191396964 is a wasteful number, since it uses less digits than its factorization.

191396964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449995 (or 1449993 counting only the distinct ones).

The product of its digits is 314928, while the sum is 48.

The square root of 191396964 is about 13834.6291601907. The cubic root of 191396964 is about 576.2952166262.

The spelling of 191396964 in words is "one hundred ninety-one million, three hundred ninety-six thousand, nine hundred sixty-four".