63400065 has 8 divisors (see below), whose sum is σ = 101440128. Its totient is φ = 33813360.

The previous prime is 63400033. The next prime is 63400069. The reversal of 63400065 is 56000436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63400065 - 2⁵ = 63400033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63400069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113321 + ... + 2113350.

It is an arithmetic number, because the mean of its divisors is an integer number (12680016).

Almost surely, 2^63400065 is an apocalyptic number.

It is an amenable number.

63400065 is a deficient number, since it is larger than the sum of its proper divisors (38040063).

63400065 is a wasteful number, since it uses less digits than its factorization.

63400065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226679.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 63400065 is about 7962.4157766346. The cubic root of 63400065 is about 398.7462095466.

The spelling of 63400065 in words is "sixty-three million, four hundred thousand, sixty-five".