63970902 has 24 divisors (see below), whose sum is σ = 139411584. Its totient is φ = 21199344.

The previous prime is 63970877. The next prime is 63970903. The reversal of 63970902 is 20907936.

63970902 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 not an unprimeable number, because it can be changed into a prime (63970903) 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 11 ways as a sum of consecutive naturals, for example, 7158 + ... + 13385.

It is an arithmetic number, because the mean of its divisors is an integer number (5808816).

Almost surely, 2^63970902 is an apocalyptic number.

63970902 is an abundant number, since it is smaller than the sum of its proper divisors (75440682).

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

63970902 is a wasteful number, since it uses less digits than its factorization.

63970902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20724 (or 20721 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 63970902 is about 7998.1811682407. The cubic root of 63970902 is about 399.9393699771.

The spelling of 63970902 in words is "sixty-three million, nine hundred seventy thousand, nine hundred two".