77893685 has 8 divisors (see below), whose sum is σ = 93864960. Its totient is φ = 62053264.

The previous prime is 77893667. The next prime is 77893687. The reversal of 77893685 is 58639877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77893685 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77893687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31397 + ... + 33786.

It is an arithmetic number, because the mean of its divisors is an integer number (11733120).

Almost surely, 2^77893685 is an apocalyptic number.

It is an amenable number.

77893685 is a deficient number, since it is larger than the sum of its proper divisors (15971275).

77893685 is a wasteful number, since it uses less digits than its factorization.

77893685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65427.

The product of its digits is 2540160, while the sum is 53.

The square root of 77893685 is about 8825.7399123246. The cubic root of 77893685 is about 427.0716569536.

The spelling of 77893685 in words is "seventy-seven million, eight hundred ninety-three thousand, six hundred eighty-five".