78764763 has 32 divisors (see below), whose sum is σ = 131443200. Its totient is φ = 40757760.

The previous prime is 78764753. The next prime is 78764789. The reversal of 78764763 is 36746787.

It is not a de Polignac number, because 78764763 - 2⁹ = 78764251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78764743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80131 + ... + 81107.

It is an arithmetic number, because the mean of its divisors is an integer number (4107600).

Almost surely, 2^78764763 is an apocalyptic number.

78764763 is a deficient number, since it is larger than the sum of its proper divisors (52678437).

78764763 is a wasteful number, since it uses less digits than its factorization.

78764763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347.

The product of its digits is 1185408, while the sum is 48.

The square root of 78764763 is about 8874.9514364868. The cubic root of 78764763 is about 428.6577271135.

The spelling of 78764763 in words is "seventy-eight million, seven hundred sixty-four thousand, seven hundred sixty-three".