83746381 has 4 divisors (see below), whose sum is σ = 87387552. Its totient is φ = 80105212.

The previous prime is 83746373. The next prime is 83746387. The reversal of 83746381 is 18364738.

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 83746381 - 2³ = 83746373 is a prime.

It is a super-2 number, since 2×83746381² = 14026912661194322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83746387) 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, 1820551 + ... + 1820596.

It is an arithmetic number, because the mean of its divisors is an integer number (21846888).

Almost surely, 2^83746381 is an apocalyptic number.

It is an amenable number.

83746381 is a deficient number, since it is larger than the sum of its proper divisors (3641171).

83746381 is a wasteful number, since it uses less digits than its factorization.

83746381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641170.

The product of its digits is 96768, while the sum is 40.

The square root of 83746381 is about 9151.3048796333. The cubic root of 83746381 is about 437.5107040646.

The spelling of 83746381 in words is "eighty-three million, seven hundred forty-six thousand, three hundred eighty-one".