63423165 has 48 divisors (see below), whose sum is σ = 111310848. Its totient is φ = 30820608.

The previous prime is 63423131. The next prime is 63423169. The reversal of 63423165 is 56132436.

It is not a de Polignac number, because 63423165 - 2⁷ = 63423037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63423169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 321847 + ... + 322043.

It is an arithmetic number, because the mean of its divisors is an integer number (2318976).

Almost surely, 2^63423165 is an apocalyptic number.

63423165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63423165 is a deficient number, since it is larger than the sum of its proper divisors (47887683).

63423165 is a wasteful number, since it uses less digits than its factorization.

63423165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 345 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 63423165 is about 7963.8662093232. The cubic root of 63423165 is about 398.7946317839.

The spelling of 63423165 in words is "sixty-three million, four hundred twenty-three thousand, one hundred sixty-five".