77877085 has 64 divisors (see below), whose sum is σ = 119750400. Its totient is φ = 47738880.

The previous prime is 77877077. The next prime is 77877097. The reversal of 77877085 is 58077877.

It is not a de Polignac number, because 77877085 - 2³ = 77877077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 522591 + ... + 522739.

It is an arithmetic number, because the mean of its divisors is an integer number (1871100).

Almost surely, 2^77877085 is an apocalyptic number.

It is an amenable number.

77877085 is a deficient number, since it is larger than the sum of its proper divisors (41873315).

77877085 is a wasteful number, since it uses less digits than its factorization.

77877085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238.

The product of its (nonzero) digits is 768320, while the sum is 49.

The square root of 77877085 is about 8824.7994311486. The cubic root of 77877085 is about 427.0413169109.

The spelling of 77877085 in words is "seventy-seven million, eight hundred seventy-seven thousand, eighty-five".