677393720 has 32 divisors (see below), whose sum is σ = 1530990720. Its totient is φ = 269738880.

The previous prime is 677393707. The next prime is 677393753. The reversal of 677393720 is 27393776.

It is a super-3 number, since 3×677393720³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29051 + ... + 46890.

It is an arithmetic number, because the mean of its divisors is an integer number (47843460).

Almost surely, 2^677393720 is an apocalyptic number.

It is an amenable number.

677393720 is an abundant number, since it is smaller than the sum of its proper divisors (853597000).

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

677393720 is a wasteful number, since it uses less digits than its factorization.

677393720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76175 (or 76171 counting only the distinct ones).

The product of its (nonzero) digits is 333396, while the sum is 44.

The square root of 677393720 is about 26026.7885072285. The cubic root of 677393720 is about 878.2410284662.

The spelling of 677393720 in words is "six hundred seventy-seven million, three hundred ninety-three thousand, seven hundred twenty".