677641632 has 48 divisors (see below), whose sum is σ = 1784607552. Its totient is φ = 225144320.

The previous prime is 677641621. The next prime is 677641633. The reversal of 677641632 is 236146776.

It is a happy number.

677641632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (677641633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18508 + ... + 41204.

It is an arithmetic number, because the mean of its divisors is an integer number (37179324).

Almost surely, 2^677641632 is an apocalyptic number.

It is an amenable number.

677641632 is an abundant number, since it is smaller than the sum of its proper divisors (1106965920).

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

677641632 is a wasteful number, since it uses less digits than its factorization.

677641632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23021 (or 23013 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 677641632 is about 26031.5507029451. The cubic root of 677641632 is about 878.3481547099.

It can be divided in two parts, 67764 and 1632, that added together give a palindrome (69396).

The spelling of 677641632 in words is "six hundred seventy-seven million, six hundred forty-one thousand, six hundred thirty-two".