677385121 has 16 divisors (see below), whose sum is σ = 810722304. Its totient is φ = 553371984.

The previous prime is 677385113. The next prime is 677385127. The reversal of 677385121 is 121583776.

It is a cyclic number.

It is not a de Polignac number, because 677385121 - 2³ = 677385113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677385127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38130 + ... + 52996.

It is an arithmetic number, because the mean of its divisors is an integer number (50670144).

Almost surely, 2^677385121 is an apocalyptic number.

It is an amenable number.

677385121 is a deficient number, since it is larger than the sum of its proper divisors (133337183).

677385121 is a wasteful number, since it uses less digits than its factorization.

677385121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180.

The product of its digits is 70560, while the sum is 40.

The square root of 677385121 is about 26026.6233115247. The cubic root of 677385121 is about 878.2373122490.

The spelling of 677385121 in words is "six hundred seventy-seven million, three hundred eighty-five thousand, one hundred twenty-one".