63690590 has 16 divisors (see below), whose sum is σ = 116095680. Its totient is φ = 25153440.

The previous prime is 63690587. The next prime is 63690629. The reversal of 63690590 is 9509636.

It is a congruent number.

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, 39521 + ... + 41100.

It is an arithmetic number, because the mean of its divisors is an integer number (7255980).

Almost surely, 2^63690590 is an apocalyptic number.

63690590 is a deficient number, since it is larger than the sum of its proper divisors (52405090).

63690590 is a wasteful number, since it uses less digits than its factorization.

63690590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80707.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 63690590 is about 7980.6384456383. The cubic root of 63690590 is about 399.3543542480.

The spelling of 63690590 in words is "sixty-three million, six hundred ninety thousand, five hundred ninety".