63953420 has 24 divisors (see below), whose sum is σ = 134683584. Its totient is φ = 25508736.

The previous prime is 63953413. The next prime is 63953431. The reversal of 63953420 is 2435936.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984 + ... + 11696.

It is an arithmetic number, because the mean of its divisors is an integer number (5611816).

Almost surely, 2^63953420 is an apocalyptic number.

It is an amenable number.

63953420 is an abundant number, since it is smaller than the sum of its proper divisors (70730164).

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

63953420 is a wasteful number, since it uses less digits than its factorization.

63953420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9089 (or 9087 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 63953420 is about 7997.0882200961. The cubic root of 63953420 is about 399.9029347811.

The spelling of 63953420 in words is "sixty-three million, nine hundred fifty-three thousand, four hundred twenty".