63724667 has 8 divisors (see below), whose sum is σ = 65556480. Its totient is φ = 61908840.

The previous prime is 63724657. The next prime is 63724669. The reversal of 63724667 is 76642736.

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 63724667 - 2²⁰ = 62676091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63724669) 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, 4334 + ... + 12092.

It is an arithmetic number, because the mean of its divisors is an integer number (8194560).

Almost surely, 2^63724667 is an apocalyptic number.

63724667 is a deficient number, since it is larger than the sum of its proper divisors (1831813).

63724667 is a wasteful number, since it uses less digits than its factorization.

63724667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7993.

The product of its digits is 254016, while the sum is 41.

The square root of 63724667 is about 7982.7731397053. The cubic root of 63724667 is about 399.4255650394.

The spelling of 63724667 in words is "sixty-three million, seven hundred twenty-four thousand, six hundred sixty-seven".