77264963 has 4 divisors (see below), whose sum is σ = 81331560. Its totient is φ = 73198368.

The previous prime is 77264947. The next prime is 77264987. The reversal of 77264963 is 36946277.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 77264963 - 2⁴ = 77264947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77264933) 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 in 3 ways as a sum of consecutive naturals, for example, 2033270 + ... + 2033307.

It is an arithmetic number, because the mean of its divisors is an integer number (20332890).

Almost surely, 2^77264963 is an apocalyptic number.

77264963 is a deficient number, since it is larger than the sum of its proper divisors (4066597).

77264963 is a wasteful number, since it uses less digits than its factorization.

77264963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066596.

The product of its digits is 381024, while the sum is 44.

The square root of 77264963 is about 8790.0490897378. The cubic root of 77264963 is about 425.9195095049.

The spelling of 77264963 in words is "seventy-seven million, two hundred sixty-four thousand, nine hundred sixty-three".