83772871 has 16 divisors (see below), whose sum is σ = 103650624. Its totient is φ = 65931264.

The previous prime is 83772869. The next prime is 83772893. The reversal of 83772871 is 17827738.

It is not a de Polignac number, because 83772871 - 2¹ = 83772869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83772071) 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, 15591 + ... + 20263.

It is an arithmetic number, because the mean of its divisors is an integer number (6478164).

Almost surely, 2^83772871 is an apocalyptic number.

83772871 is a deficient number, since it is larger than the sum of its proper divisors (19877753).

83772871 is a wasteful number, since it uses less digits than its factorization.

83772871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4890.

The product of its digits is 131712, while the sum is 43.

The square root of 83772871 is about 9152.7520997785. The cubic root of 83772871 is about 437.5568291893.

The spelling of 83772871 in words is "eighty-three million, seven hundred seventy-two thousand, eight hundred seventy-one".