677138472 has 48 divisors (see below), whose sum is σ = 1835950740. Its totient is φ = 225462528.

The previous prime is 677138471. The next prime is 677138477. The reversal of 677138472 is 274831776.

It can be written as a sum of positive squares in 2 ways, for example, as 617323716 + 59814756 = 24846^2 + 7734^2 .

It is not an unprimeable number, because it can be changed into a prime (677138471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67068 + ... + 76500.

Almost surely, 2^677138472 is an apocalyptic number.

It is an amenable number.

677138472 is an abundant number, since it is smaller than the sum of its proper divisors (1158812268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677138472 is a wasteful number, since it uses less digits than its factorization.

677138472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10442 (or 10435 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 677138472 is about 26021.8844821047. The cubic root of 677138472 is about 878.1307049219.

The spelling of 677138472 in words is "six hundred seventy-seven million, one hundred thirty-eight thousand, four hundred seventy-two".