63977925 has 24 divisors (see below), whose sum is σ = 115394400. Its totient is φ = 31019200.

The previous prime is 63977909. The next prime is 63977929. The reversal of 63977925 is 52977936.

63977925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63977925 - 2⁴ = 63977909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63977929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37950 + ... + 39599.

It is an arithmetic number, because the mean of its divisors is an integer number (4808100).

Almost surely, 2^63977925 is an apocalyptic number.

It is an amenable number.

63977925 is a deficient number, since it is larger than the sum of its proper divisors (51416475).

63977925 is a wasteful number, since it uses less digits than its factorization.

63977925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77573 (or 77568 counting only the distinct ones).

The product of its digits is 714420, while the sum is 48.

The square root of 63977925 is about 7998.6201935084. The cubic root of 63977925 is about 399.9540051280.

The spelling of 63977925 in words is "sixty-three million, nine hundred seventy-seven thousand, nine hundred twenty-five".