63898455 has 16 divisors (see below), whose sum is σ = 105763680. Its totient is φ = 32903808.

The previous prime is 63898423. The next prime is 63898469. The reversal of 63898455 is 55489836.

It is a happy number.

It is not a de Polignac number, because 63898455 - 2⁵ = 63898423 is a prime.

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, 73012 + ... + 73881.

It is an arithmetic number, because the mean of its divisors is an integer number (6610230).

Almost surely, 2^63898455 is an apocalyptic number.

63898455 is a deficient number, since it is larger than the sum of its proper divisors (41865225).

63898455 is a wasteful number, since it uses less digits than its factorization.

63898455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146930.

The product of its digits is 1036800, while the sum is 48.

The square root of 63898455 is about 7993.6509180724. The cubic root of 63898455 is about 399.7883359322.

The spelling of 63898455 in words is "sixty-three million, eight hundred ninety-eight thousand, four hundred fifty-five".