63998158 has 8 divisors (see below), whose sum is σ = 109711152. Its totient is φ = 27427776.

The previous prime is 63998153. The next prime is 63998159. The reversal of 63998158 is 85189936.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63998153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2285635 + ... + 2285662.

It is an arithmetic number, because the mean of its divisors is an integer number (13713894).

Almost surely, 2^63998158 is an apocalyptic number.

63998158 is a deficient number, since it is larger than the sum of its proper divisors (45712994).

63998158 is a wasteful number, since it uses less digits than its factorization.

63998158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571306.

The product of its digits is 466560, while the sum is 49.

The square root of 63998158 is about 7999.8848741716. The cubic root of 63998158 is about 399.9961624632.

The spelling of 63998158 in words is "sixty-three million, nine hundred ninety-eight thousand, one hundred fifty-eight".