63925890 has 48 divisors (see below), whose sum is σ = 178474752. Its totient is φ = 14611296.

The previous prime is 63925843. The next prime is 63925913. The reversal of 63925890 is 9852936.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 20274 + ... + 23213.

It is an arithmetic number, because the mean of its divisors is an integer number (3718224).

Almost surely, 2^63925890 is an apocalyptic number.

63925890 is an abundant number, since it is smaller than the sum of its proper divisors (114548862).

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

63925890 is a wasteful number, since it uses less digits than its factorization.

63925890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43511 (or 43504 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 63925890 is about 7995.3667833315. The cubic root of 63925890 is about 399.8455445331.

The spelling of 63925890 in words is "sixty-three million, nine hundred twenty-five thousand, eight hundred ninety".