63772971 has 8 divisors (see below), whose sum is σ = 85141824. Its totient is φ = 42459720.

The previous prime is 63772931. The next prime is 63772991. The reversal of 63772971 is 17927736.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63772971 - 2¹¹ = 63770923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63772931) 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, 11145 + ... + 15866.

It is an arithmetic number, because the mean of its divisors is an integer number (10642728).

Almost surely, 2^63772971 is an apocalyptic number.

63772971 is a deficient number, since it is larger than the sum of its proper divisors (21368853).

63772971 is a wasteful number, since it uses less digits than its factorization.

63772971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27801.

The product of its digits is 111132, while the sum is 42.

The square root of 63772971 is about 7985.7980815946. The cubic root of 63772971 is about 399.5264625436.

The spelling of 63772971 in words is "sixty-three million, seven hundred seventy-two thousand, nine hundred seventy-one".