63982015 has 4 divisors (see below), whose sum is σ = 76778424. Its totient is φ = 51185608.

The previous prime is 63982013. The next prime is 63982027. The reversal of 63982015 is 51028936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63982015 - 2¹ = 63982013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63982013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6398197 + ... + 6398206.

It is an arithmetic number, because the mean of its divisors is an integer number (19194606).

Almost surely, 2^63982015 is an apocalyptic number.

63982015 is a deficient number, since it is larger than the sum of its proper divisors (12796409).

63982015 is a wasteful number, since it uses less digits than its factorization.

63982015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12796408.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 63982015 is about 7998.8758585191. The cubic root of 63982015 is about 399.9625277397.

The spelling of 63982015 in words is "sixty-three million, nine hundred eighty-two thousand, fifteen".