676805580 has 72 divisors (see below), whose sum is σ = 2239617744. Its totient is φ = 164073600.

The previous prime is 676805551. The next prime is 676805603. The reversal of 676805580 is 85508676.

676805580 is a `hidden beast` number, since 6 + 7 + 68 + 0 + 5 + 580 = 666.

It is a super-3 number, since 3×676805580³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168931 + ... + 172890.

It is an arithmetic number, because the mean of its divisors is an integer number (31105802).

Almost surely, 2^676805580 is an apocalyptic number.

676805580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

676805580 is an abundant number, since it is smaller than the sum of its proper divisors (1562812164).

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

676805580 is a wasteful number, since it uses less digits than its factorization.

676805580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341847 (or 341842 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 676805580 is about 26015.4873104464. The cubic root of 676805580 is about 877.9867803455.

The spelling of 676805580 in words is "six hundred seventy-six million, eight hundred five thousand, five hundred eighty".