83574081 has 6 divisors (see below), whose sum is σ = 120718130. Its totient is φ = 55716048.

The previous prime is 83574079. The next prime is 83574089. The reversal of 83574081 is 18047538.

83574081 is a `hidden beast` number, since 8 + 3 + 574 + 0 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 58982400 + 24591681 = 7680^2 + 4959^2 .

It is not a de Polignac number, because 83574081 - 2¹ = 83574079 is a prime.

It is a super-2 number, since 2×83574081² = 13969254029989122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83574089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4642996 + ... + 4643013.

Almost surely, 2^83574081 is an apocalyptic number.

It is an amenable number.

83574081 is a deficient number, since it is larger than the sum of its proper divisors (37144049).

83574081 is a wasteful number, since it uses less digits than its factorization.

83574081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9286015 (or 9286012 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 83574081 is about 9141.8860745472. The cubic root of 83574081 is about 437.2104528762.

Subtracting from 83574081 its product of nonzero digits (26880), we obtain a triangular number (83547201 = T₁₂₉₂₆).

The spelling of 83574081 in words is "eighty-three million, five hundred seventy-four thousand, eighty-one".