63677198 has 32 divisors (see below), whose sum is σ = 106251264. Its totient is φ = 28436832.

The previous prime is 63677191. The next prime is 63677231. The reversal of 63677198 is 89177636.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63677191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130511 + ... + 130997.

It is an arithmetic number, because the mean of its divisors is an integer number (3320352).

Almost surely, 2^63677198 is an apocalyptic number.

63677198 is a deficient number, since it is larger than the sum of its proper divisors (42574066).

63677198 is a wasteful number, since it uses less digits than its factorization.

63677198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its digits is 381024, while the sum is 47.

The square root of 63677198 is about 7979.7993709115. The cubic root of 63677198 is about 399.3263619998.

The spelling of 63677198 in words is "sixty-three million, six hundred seventy-seven thousand, one hundred ninety-eight".