63390090 has 16 divisors (see below), whose sum is σ = 152136288. Its totient is φ = 16904016.

The previous prime is 63390083. The next prime is 63390109. The reversal of 63390090 is 9009336.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2113003 = 63390090 / (6 + 3 + 3 + 9 + 0 + 0 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056472 + ... + 1056531.

It is an arithmetic number, because the mean of its divisors is an integer number (9508518).

Almost surely, 2^63390090 is an apocalyptic number.

63390090 is an abundant number, since it is smaller than the sum of its proper divisors (88746198).

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

63390090 is a wasteful number, since it uses less digits than its factorization.

63390090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113013.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 63390090 is about 7961.7893717430. The cubic root of 63390090 is about 398.7252963080.

The spelling of 63390090 in words is "sixty-three million, three hundred ninety thousand, ninety".