677972508 has 12 divisors (see below), whose sum is σ = 1581935880. Its totient is φ = 225990832.

The previous prime is 677972507. The next prime is 677972513. The reversal of 677972508 is 805279776.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677972507) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28248843 + ... + 28248866.

It is an arithmetic number, because the mean of its divisors is an integer number (131827990).

Almost surely, 2^677972508 is an apocalyptic number.

It is an amenable number.

677972508 is an abundant number, since it is smaller than the sum of its proper divisors (903963372).

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

677972508 is a wasteful number, since it uses less digits than its factorization.

677972508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56497716 (or 56497714 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 51.

The square root of 677972508 is about 26037.9052152818. The cubic root of 677972508 is about 878.4910901601.

The spelling of 677972508 in words is "six hundred seventy-seven million, nine hundred seventy-two thousand, five hundred eight".