63898503 has 8 divisors (see below), whose sum is σ = 86469888. Its totient is φ = 41963064.

The previous prime is 63898493. The next prime is 63898547. The reversal of 63898503 is 30589836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63898503 - 2¹² = 63894407 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63898553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158751 + ... + 159152.

It is an arithmetic number, because the mean of its divisors is an integer number (10808736).

Almost surely, 2^63898503 is an apocalyptic number.

63898503 is a deficient number, since it is larger than the sum of its proper divisors (22571385).

63898503 is a wasteful number, since it uses less digits than its factorization.

63898503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317973.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 63898503 is about 7993.6539204547. The cubic root of 63898503 is about 399.7884360381.

The spelling of 63898503 in words is "sixty-three million, eight hundred ninety-eight thousand, five hundred three".