677146645 has 16 divisors (see below), whose sum is σ = 930993408. Its totient is φ = 463161600.

The previous prime is 677146637. The next prime is 677146649. The reversal of 677146645 is 546641776.

It is not a de Polignac number, because 677146645 - 2³ = 677146637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677146595 and 677146604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677146649) 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, 10089 + ... + 38158.

It is an arithmetic number, because the mean of its divisors is an integer number (58187088).

Almost surely, 2^677146645 is an apocalyptic number.

It is an amenable number.

677146645 is a deficient number, since it is larger than the sum of its proper divisors (253846763).

677146645 is a wasteful number, since it uses less digits than its factorization.

677146645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48660.

The product of its digits is 846720, while the sum is 46.

The square root of 677146645 is about 26022.0415225247. The cubic root of 677146645 is about 878.1342378937.

The spelling of 677146645 in words is "six hundred seventy-seven million, one hundred forty-six thousand, six hundred forty-five".