63918974 has 8 divisors (see below), whose sum is σ = 109575408. Its totient is φ = 27393840.

The previous prime is 63918971. The next prime is 63918977. The reversal of 63918974 is 47981936.

It is an interprime number because it is at equal distance from previous prime (63918971) and next prime (63918977).

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 (63918971) 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, 2282807 + ... + 2282834.

It is an arithmetic number, because the mean of its divisors is an integer number (13696926).

Almost surely, 2^63918974 is an apocalyptic number.

63918974 is a deficient number, since it is larger than the sum of its proper divisors (45656434).

63918974 is a wasteful number, since it uses less digits than its factorization.

63918974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565650.

The product of its digits is 326592, while the sum is 47.

The square root of 63918974 is about 7994.9342711495. The cubic root of 63918974 is about 399.8311245461.

The spelling of 63918974 in words is "sixty-three million, nine hundred eighteen thousand, nine hundred seventy-four".