63997101 has 16 divisors (see below), whose sum is σ = 108355200. Its totient is φ = 36569664.

The previous prime is 63997099. The next prime is 63997117. The reversal of 63997101 is 10179936.

63997101 is a `hidden beast` number, since 639 + 9 + 7 + 10 + 1 = 666.

It is not a de Polignac number, because 63997101 - 2¹ = 63997099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63997181) 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, 169116 + ... + 169493.

It is an arithmetic number, because the mean of its divisors is an integer number (6772200).

Almost surely, 2^63997101 is an apocalyptic number.

It is an amenable number.

63997101 is a deficient number, since it is larger than the sum of its proper divisors (44358099).

63997101 is a wasteful number, since it uses less digits than its factorization.

63997101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338625 (or 338619 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 63997101 is about 7999.8188104481. The cubic root of 63997101 is about 399.9939603255.

The spelling of 63997101 in words is "sixty-three million, nine hundred ninety-seven thousand, one hundred one".