964776646 has 4 divisors (see below), whose sum is σ = 1447164972. Its totient is φ = 482388322.

The previous prime is 964776641. The next prime is 964776679. The reversal of 964776646 is 646677469.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964776641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241194160 + ... + 241194163.

It is an arithmetic number, because the mean of its divisors is an integer number (361791243).

Almost surely, 2^964776646 is an apocalyptic number.

964776646 is a deficient number, since it is larger than the sum of its proper divisors (482388326).

964776646 is a wasteful number, since it uses less digits than its factorization.

964776646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482388325.

The product of its digits is 9144576, while the sum is 55.

The square root of 964776646 is about 31060.8539161434. The cubic root of 964776646 is about 988.1182655229.

The spelling of 964776646 in words is "nine hundred sixty-four million, seven hundred seventy-six thousand, six hundred forty-six".