63801465 has 64 divisors (see below), whose sum is σ = 128679936. Its totient is φ = 26272512.

The previous prime is 63801457. The next prime is 63801467. The reversal of 63801465 is 56410836.

It is not a de Polignac number, because 63801465 - 2³ = 63801457 is a prime.

It is a super-2 number, since 2×63801465² = 8141253872292450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63801467) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58152 + ... + 59238.

It is an arithmetic number, because the mean of its divisors is an integer number (2010624).

Almost surely, 2^63801465 is an apocalyptic number.

63801465 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

63801465 is the 6522-nd pentagonal number.

It is an amenable number.

63801465 is an abundant number, since it is smaller than the sum of its proper divisors (64878471).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63801465 is a wasteful number, since it uses less digits than its factorization.

63801465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 63801465 is about 7987.5819244625. The cubic root of 63801465 is about 399.5859569855.

The spelling of 63801465 in words is "sixty-three million, eight hundred one thousand, four hundred sixty-five".