84558379 has 4 divisors (see below), whose sum is σ = 89008840. Its totient is φ = 80107920.

The previous prime is 84558343. The next prime is 84558389. The reversal of 84558379 is 97385548.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84558379 - 2¹¹ = 84556331 is a prime.

It is a super-3 number, since 3×84558379³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84558329) 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, 2225202 + ... + 2225239.

It is an arithmetic number, because the mean of its divisors is an integer number (22252210).

Almost surely, 2^84558379 is an apocalyptic number.

84558379 is a deficient number, since it is larger than the sum of its proper divisors (4450461).

84558379 is a wasteful number, since it uses less digits than its factorization.

84558379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450460.

The product of its digits is 1209600, while the sum is 49.

The square root of 84558379 is about 9195.5630061460. The cubic root of 84558379 is about 438.9201810040.

The spelling of 84558379 in words is "eighty-four million, five hundred fifty-eight thousand, three hundred seventy-nine".