677772625 has 16 divisors (see below), whose sum is σ = 882640512. Its totient is φ = 518641200.

The previous prime is 677772619. The next prime is 677772629. The reversal of 677772625 is 526277776.

It is a happy number.

It is not a de Polignac number, because 677772625 - 2⁵ = 677772593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677772629) 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, 114999 + ... + 120748.

It is an arithmetic number, because the mean of its divisors is an integer number (55165032).

Almost surely, 2^677772625 is an apocalyptic number.

It is an amenable number.

677772625 is a deficient number, since it is larger than the sum of its proper divisors (204867887).

677772625 is a wasteful number, since it uses less digits than its factorization.

677772625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235785 (or 235775 counting only the distinct ones).

The product of its digits is 1728720, while the sum is 49.

The square root of 677772625 is about 26034.0666243290. The cubic root of 677772625 is about 878.4047480681.

It can be divided in two parts, 6777 and 72625, that multiplied together give a triangular number (492179625 = T₃₁₃₇₄).

The spelling of 677772625 in words is "six hundred seventy-seven million, seven hundred seventy-two thousand, six hundred twenty-five".