77620095 has 72 divisors (see below), whose sum is σ = 159790176. Its totient is φ = 34142976.

The previous prime is 77620069. The next prime is 77620129. The reversal of 77620095 is 59002677.

It is not a de Polignac number, because 77620095 - 2⁷ = 77619967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 264769 + ... + 265061.

It is an arithmetic number, because the mean of its divisors is an integer number (2219308).

Almost surely, 2^77620095 is an apocalyptic number.

77620095 is an abundant number, since it is smaller than the sum of its proper divisors (82170081).

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

77620095 is a wasteful number, since it uses less digits than its factorization.

77620095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 77620095 is about 8810.2267280701. The cubic root of 77620095 is about 426.5710618174.

The spelling of 77620095 in words is "seventy-seven million, six hundred twenty thousand, ninety-five".