63970938 has 32 divisors (see below), whose sum is σ = 142896000. Its totient is φ = 21212928.

The previous prime is 63970937. The next prime is 63970969. The reversal of 63970938 is 83907936.

It is a happy number.

63970938 is a `hidden beast` number, since 639 + 7 + 0 + 9 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 63970893 and 63970902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63970937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7770 + ... + 13722.

It is an arithmetic number, because the mean of its divisors is an integer number (4465500).

Almost surely, 2^63970938 is an apocalyptic number.

63970938 is an abundant number, since it is smaller than the sum of its proper divisors (78925062).

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

63970938 is a wasteful number, since it uses less digits than its factorization.

63970938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6163 (or 6157 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 63970938 is about 7998.1834187520. The cubic root of 63970938 is about 399.9394449999.

The spelling of 63970938 in words is "sixty-three million, nine hundred seventy thousand, nine hundred thirty-eight".