77320495 has 16 divisors (see below), whose sum is σ = 106182720. Its totient is φ = 52948224.

The previous prime is 77320487. The next prime is 77320501. The reversal of 77320495 is 59402377.

It is not a de Polignac number, because 77320495 - 2³ = 77320487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47251 + ... + 48859.

It is an arithmetic number, because the mean of its divisors is an integer number (6636420).

Almost surely, 2^77320495 is an apocalyptic number.

77320495 is a deficient number, since it is larger than the sum of its proper divisors (28862225).

77320495 is a wasteful number, since it uses less digits than its factorization.

77320495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 77320495 is about 8793.2073215636. The cubic root of 77320495 is about 426.0215242565.

It can be divided in two parts, 77320 and 495, that added together give a triangular number (77815 = T₃₉₄).

The spelling of 77320495 in words is "seventy-seven million, three hundred twenty thousand, four hundred ninety-five".