677078913 has 32 divisors (see below), whose sum is σ = 1055488000. Its totient is φ = 385913808.

The previous prime is 677078911. The next prime is 677078929. The reversal of 677078913 is 319870776.

It is a happy number.

It is not a de Polignac number, because 677078913 - 2¹ = 677078911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677078911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636420 + ... + 637482.

It is an arithmetic number, because the mean of its divisors is an integer number (32984000).

Almost surely, 2^677078913 is an apocalyptic number.

It is an amenable number.

677078913 is a deficient number, since it is larger than the sum of its proper divisors (378409087).

677078913 is a wasteful number, since it uses less digits than its factorization.

677078913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 48.

The square root of 677078913 is about 26020.7400548101. The cubic root of 677078913 is about 878.1049582826.

The spelling of 677078913 in words is "six hundred seventy-seven million, seventy-eight thousand, nine hundred thirteen".