113684421 has 4 divisors (see below), whose sum is σ = 151579232. Its totient is φ = 75789612.

The previous prime is 113684411. The next prime is 113684447. The reversal of 113684421 is 124486311.

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 not a de Polignac number, because 113684421 - 2⁶ = 113684357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113684411) 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, 18947401 + ... + 18947406.

It is an arithmetic number, because the mean of its divisors is an integer number (37894808).

Almost surely, 2^113684421 is an apocalyptic number.

It is an amenable number.

113684421 is a deficient number, since it is larger than the sum of its proper divisors (37894811).

113684421 is an equidigital number, since it uses as much as digits as its factorization.

113684421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37894810.

The product of its digits is 4608, while the sum is 30.

The square root of 113684421 is about 10662.2896696723. The cubic root of 113684421 is about 484.4329234983.

The spelling of 113684421 in words is "one hundred thirteen million, six hundred eighty-four thousand, four hundred twenty-one".