63725670 has 32 divisors (see below), whose sum is σ = 169935840. Its totient is φ = 16993440.

The previous prime is 63725653. The next prime is 63725693. The reversal of 63725670 is 7652736.

It is a happy number.

It is a super-2 number, since 2×63725670² = 8121922033897800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117741 + ... + 118280.

It is an arithmetic number, because the mean of its divisors is an integer number (5310495).

Almost surely, 2^63725670 is an apocalyptic number.

63725670 is an abundant number, since it is smaller than the sum of its proper divisors (106210170).

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

63725670 is a wasteful number, since it uses less digits than its factorization.

63725670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236037 (or 236031 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 63725670 is about 7982.8359622380. The cubic root of 63725670 is about 399.4276606264.

The spelling of 63725670 in words is "sixty-three million, seven hundred twenty-five thousand, six hundred seventy".