677691616 has 24 divisors (see below), whose sum is σ = 1524806640. Its totient is φ = 290439168.

The previous prime is 677691613. The next prime is 677691643. The reversal of 677691616 is 616196776.

It is a self number, because there is not a number n which added to its sum of digits gives 677691616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677691611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512481 + ... + 1512928.

It is an arithmetic number, because the mean of its divisors is an integer number (63533610).

Almost surely, 2^677691616 is an apocalyptic number.

It is an amenable number.

677691616 is an abundant number, since it is smaller than the sum of its proper divisors (847115024).

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

677691616 is a wasteful number, since it uses less digits than its factorization.

677691616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025426 (or 3025418 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 677691616 is about 26032.5107509821. The cubic root of 677691616 is about 878.3697503305.

The spelling of 677691616 in words is "six hundred seventy-seven million, six hundred ninety-one thousand, six hundred sixteen".