63620408 has 16 divisors (see below), whose sum is σ = 121311000. Its totient is φ = 31270816.

The previous prime is 63620399. The next prime is 63620423. The reversal of 63620408 is 80402636.

63620408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 66923 + ... + 67866.

Almost surely, 2^63620408 is an apocalyptic number.

It is an amenable number.

63620408 is a deficient number, since it is larger than the sum of its proper divisors (57690592).

63620408 is a wasteful number, since it uses less digits than its factorization.

63620408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134854 (or 134850 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 63620408 is about 7976.2402170446. The cubic root of 63620408 is about 399.2076146836.

The spelling of 63620408 in words is "sixty-three million, six hundred twenty thousand, four hundred eight".