63722887 has 8 divisors (see below), whose sum is σ = 66396672. Its totient is φ = 61087800.

The previous prime is 63722873. The next prime is 63722899. The reversal of 63722887 is 78822736.

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 63722887 - 2¹⁹ = 63198599 is a prime.

It is a super-2 number, since 2×63722887² = 8121212655229538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63722837) 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, 6289 + ... + 12922.

It is an arithmetic number, because the mean of its divisors is an integer number (8299584).

Almost surely, 2^63722887 is an apocalyptic number.

63722887 is a deficient number, since it is larger than the sum of its proper divisors (2673785).

63722887 is a wasteful number, since it uses less digits than its factorization.

63722887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19349.

The product of its digits is 225792, while the sum is 43.

The square root of 63722887 is about 7982.6616488487. The cubic root of 63722887 is about 399.4218459975.

The spelling of 63722887 in words is "sixty-three million, seven hundred twenty-two thousand, eight hundred eighty-seven".