83045681 has 4 divisors (see below), whose sum is σ = 83699712. Its totient is φ = 82391652.

The previous prime is 83045671. The next prime is 83045687. The reversal of 83045681 is 18654038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83045681 - 2¹⁰ = 83044657 is a prime.

It is a super-2 number, since 2×83045681² = 13793170265507522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83045687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326825 + ... + 327078.

It is an arithmetic number, because the mean of its divisors is an integer number (20924928).

Almost surely, 2^83045681 is an apocalyptic number.

It is an amenable number.

83045681 is a deficient number, since it is larger than the sum of its proper divisors (654031).

83045681 is a wasteful number, since it uses less digits than its factorization.

83045681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654030.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 83045681 is about 9112.9403048632. The cubic root of 83045681 is about 436.2870780712.

The spelling of 83045681 in words is "eighty-three million, forty-five thousand, six hundred eighty-one".