63967970 has 16 divisors (see below), whose sum is σ = 125610048. Its totient is φ = 23261040.

The previous prime is 63967963. The next prime is 63967993. The reversal of 63967970 is 7976936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290654 + ... + 290873.

It is an arithmetic number, because the mean of its divisors is an integer number (7850628).

Almost surely, 2^63967970 is an apocalyptic number.

63967970 is a deficient number, since it is larger than the sum of its proper divisors (61642078).

63967970 is a wasteful number, since it uses less digits than its factorization.

63967970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581545.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 63967970 is about 7997.9978744683. The cubic root of 63967970 is about 399.9332596983.

The spelling of 63967970 in words is "sixty-three million, nine hundred sixty-seven thousand, nine hundred seventy".