63388923 has 16 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 38100384.

The previous prime is 63388891. The next prime is 63388931. The reversal of 63388923 is 32988336.

It is not a de Polignac number, because 63388923 - 2⁵ = 63388891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63380923) 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, 17223 + ... + 20576.

It is an arithmetic number, because the mean of its divisors is an integer number (5821200).

Almost surely, 2^63388923 is an apocalyptic number.

63388923 is a deficient number, since it is larger than the sum of its proper divisors (29750277).

63388923 is a wasteful number, since it uses less digits than its factorization.

63388923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37858.

The product of its digits is 186624, while the sum is 42.

The square root of 63388923 is about 7961.7160838603. The cubic root of 63388923 is about 398.7228494729.

The spelling of 63388923 in words is "sixty-three million, three hundred eighty-eight thousand, nine hundred twenty-three".