63875389 has 8 divisors (see below), whose sum is σ = 65378880. Its totient is φ = 62389536.

The previous prime is 63875377. The next prime is 63875401. The reversal of 63875389 is 98357836.

It is an interprime number because it is at equal distance from previous prime (63875377) and next prime (63875401).

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

It is a cyclic number.

It is not a de Polignac number, because 63875389 - 2⁷ = 63875261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63875489) 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, 3064 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (8172360).

Almost surely, 2^63875389 is an apocalyptic number.

It is an amenable number.

63875389 is a deficient number, since it is larger than the sum of its proper divisors (1503491).

63875389 is an equidigital number, since it uses as much as digits as its factorization.

63875389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819.

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

The square root of 63875389 is about 7992.2080178134. The cubic root of 63875389 is about 399.7402250790.

The spelling of 63875389 in words is "sixty-three million, eight hundred seventy-five thousand, three hundred eighty-nine".