677685390 has 16 divisors (see below), whose sum is σ = 1626445008. Its totient is φ = 180716096.

The previous prime is 677685367. The next prime is 677685391. The reversal of 677685390 is 93586776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677685391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11294727 + ... + 11294786.

It is an arithmetic number, because the mean of its divisors is an integer number (101652813).

Almost surely, 2^677685390 is an apocalyptic number.

677685390 is an abundant number, since it is smaller than the sum of its proper divisors (948759618).

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

677685390 is a wasteful number, since it uses less digits than its factorization.

677685390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22589523.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 677685390 is about 26032.3911694642. The cubic root of 677685390 is about 878.3670604409.

The spelling of 677685390 in words is "six hundred seventy-seven million, six hundred eighty-five thousand, three hundred ninety".