63667674 has 32 divisors (see below), whose sum is σ = 161696640. Its totient is φ = 18190656.

The previous prime is 63667661. The next prime is 63667679. The reversal of 63667674 is 47676636.

63667674 is a `hidden beast` number, since 636 + 6 + 7 + 6 + 7 + 4 = 666.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (63667679) 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, 83839 + ... + 84594.

It is an arithmetic number, because the mean of its divisors is an integer number (5053020).

Almost surely, 2^63667674 is an apocalyptic number.

63667674 is an abundant number, since it is smaller than the sum of its proper divisors (98028966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63667674 is a wasteful number, since it uses less digits than its factorization.

63667674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168451 (or 168445 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The square root of 63667674 is about 7979.2025917381. The cubic root of 63667674 is about 399.3064523408.

The spelling of 63667674 in words is "sixty-three million, six hundred sixty-seven thousand, six hundred seventy-four".