63399078 has 32 divisors (see below), whose sum is σ = 141352320. Its totient is φ = 21063240.

The previous prime is 63399023. The next prime is 63399163. The reversal of 63399078 is 87099336.

It is a happy number.

63399078 is a `hidden beast` number, since 633 + 9 + 9 + 0 + 7 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16101 + ... + 19647.

It is an arithmetic number, because the mean of its divisors is an integer number (4417260).

Almost surely, 2^63399078 is an apocalyptic number.

63399078 is an abundant number, since it is smaller than the sum of its proper divisors (77953242).

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

63399078 is a wasteful number, since it uses less digits than its factorization.

63399078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 63399078 is about 7962.3537977158. The cubic root of 63399078 is about 398.7441403344.

The spelling of 63399078 in words is "sixty-three million, three hundred ninety-nine thousand, seventy-eight".