677819776 has 32 divisors (see below), whose sum is σ = 1356797880. Its totient is φ = 337290240.

The previous prime is 677819741. The next prime is 677819777. The reversal of 677819776 is 677918776.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 677819776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677819777) 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, 14460 + ... + 39556.

Almost surely, 2^677819776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677819776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678398940).

677819776 is an abundant number, since it is smaller than the sum of its proper divisors (678978104).

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

677819776 is a wasteful number, since it uses less digits than its factorization.

677819776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25322 (or 25310 counting only the distinct ones).

The product of its digits is 6223392, while the sum is 58.

The square root of 677819776 is about 26034.9721720612. The cubic root of 677819776 is about 878.4251170927.

The spelling of 677819776 in words is "six hundred seventy-seven million, eight hundred nineteen thousand, seven hundred seventy-six".