63875398 has 4 divisors (see below), whose sum is σ = 95813100. Its totient is φ = 31937698.

The previous prime is 63875377. The next prime is 63875401. The reversal of 63875398 is 89357836.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15968848 + ... + 15968851.

It is an arithmetic number, because the mean of its divisors is an integer number (23953275).

Almost surely, 2^63875398 is an apocalyptic number.

63875398 is a deficient number, since it is larger than the sum of its proper divisors (31937702).

63875398 is a wasteful number, since it uses less digits than its factorization.

63875398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31937701.

The product of its digits is 1088640, while the sum is 49.

The square root of 63875398 is about 7992.2085808617. The cubic root of 63875398 is about 399.7402438534.

The spelling of 63875398 in words is "sixty-three million, eight hundred seventy-five thousand, three hundred ninety-eight".