63890404 has 12 divisors (see below), whose sum is σ = 111885228. Its totient is φ = 31923200.

The previous prime is 63890371. The next prime is 63890417. The reversal of 63890404 is 40409836.

It can be written as a sum of positive squares in 2 ways, for example, as 52533504 + 11356900 = 7248^2 + 3370^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63890404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244 + ... + 11524.

It is an arithmetic number, because the mean of its divisors is an integer number (9323769).

Almost surely, 2^63890404 is an apocalyptic number.

It is an amenable number.

63890404 is a deficient number, since it is larger than the sum of its proper divisors (47994824).

63890404 is a wasteful number, since it uses less digits than its factorization.

63890404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006 (or 11004 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 63890404 is about 7993.1473150443. The cubic root of 63890404 is about 399.7715445451.

The spelling of 63890404 in words is "sixty-three million, eight hundred ninety thousand, four hundred four".