83458381 has 4 divisors (see below), whose sum is σ = 83676672. Its totient is φ = 83240092.

The previous prime is 83458379. The next prime is 83458429. The reversal of 83458381 is 18385438.

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 83458381 - 2¹ = 83458379 is a prime.

It is a super-2 number, since 2×83458381² = 13930602718282322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83458301) 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, 108571 + ... + 109336.

It is an arithmetic number, because the mean of its divisors is an integer number (20919168).

Almost surely, 2^83458381 is an apocalyptic number.

It is an amenable number.

83458381 is a deficient number, since it is larger than the sum of its proper divisors (218291).

83458381 is a wasteful number, since it uses less digits than its factorization.

83458381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218290.

The product of its digits is 92160, while the sum is 40.

The square root of 83458381 is about 9135.5558670505. Note that the first 3 decimals coincide. The cubic root of 83458381 is about 437.0086015758.

The spelling of 83458381 in words is "eighty-three million, four hundred fifty-eight thousand, three hundred eighty-one".