63872571 has 8 divisors (see below), whose sum is σ = 97329664. Its totient is φ = 36498600.

The previous prime is 63872569. The next prime is 63872573. The reversal of 63872571 is 17527836.

It is an interprime number because it is at equal distance from previous prime (63872569) and next prime (63872573).

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

It is not a de Polignac number, because 63872571 - 2¹ = 63872569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63872573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520755 + ... + 1520796.

It is an arithmetic number, because the mean of its divisors is an integer number (12166208).

Almost surely, 2^63872571 is an apocalyptic number.

63872571 is a deficient number, since it is larger than the sum of its proper divisors (33457093).

63872571 is a wasteful number, since it uses less digits than its factorization.

63872571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041561.

The product of its digits is 70560, while the sum is 39.

The square root of 63872571 is about 7992.0317191563. The cubic root of 63872571 is about 399.7343465263.

The spelling of 63872571 in words is "sixty-three million, eight hundred seventy-two thousand, five hundred seventy-one".