63973065 has 16 divisors (see below), whose sum is σ = 110230848. Its totient is φ = 31494336.

The previous prime is 63973027. The next prime is 63973087. The reversal of 63973065 is 56037936.

It is not a de Polignac number, because 63973065 - 2⁹ = 63972553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163839 + ... + 164228.

It is an arithmetic number, because the mean of its divisors is an integer number (6889428).

Almost surely, 2^63973065 is an apocalyptic number.

63973065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63973065 is a deficient number, since it is larger than the sum of its proper divisors (46257783).

63973065 is a wasteful number, since it uses less digits than its factorization.

63973065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328088.

The product of its (nonzero) digits is 102060, while the sum is 39.

The square root of 63973065 is about 7998.3163853401. The cubic root of 63973065 is about 399.9438775427.

The spelling of 63973065 in words is "sixty-three million, nine hundred seventy-three thousand, sixty-five".