63899223 has 16 divisors (see below), whose sum is σ = 90529920. Its totient is φ = 39976416.

The previous prime is 63899207. The next prime is 63899237. The reversal of 63899223 is 32299836.

It is not a de Polignac number, because 63899223 - 2⁴ = 63899207 is a prime.

It is a super-2 number, since 2×63899223² = 8166221400007458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63899023) 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, 861 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (5658120).

Almost surely, 2^63899223 is an apocalyptic number.

63899223 is a deficient number, since it is larger than the sum of its proper divisors (26630697).

63899223 is a wasteful number, since it uses less digits than its factorization.

63899223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10606.

The product of its digits is 139968, while the sum is 42.

The square root of 63899223 is about 7993.6989560528. The cubic root of 63899223 is about 399.7899376205.

It can be divided in two parts, 638992 and 23, that added together give a triangular number (639015 = T₁₁₃₀).

The spelling of 63899223 in words is "sixty-three million, eight hundred ninety-nine thousand, two hundred twenty-three".