5623881 has 4 divisors (see below), whose sum is σ = 7498512. Its totient is φ = 3749252.

The previous prime is 5623859. The next prime is 5623949. The reversal of 5623881 is 1883265.

It is a happy number.

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 5623881 - 2¹⁰ = 5622857 is a prime.

It is a super-2 number, since 2×5623881² = 63256075004322, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5623811) 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, 937311 + ... + 937316.

It is an arithmetic number, because the mean of its divisors is an integer number (1874628).

Almost surely, 2^5623881 is an apocalyptic number.

It is an amenable number.

5623881 is a deficient number, since it is larger than the sum of its proper divisors (1874631).

5623881 is a wasteful number, since it uses less digits than its factorization.

5623881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874630.

The product of its digits is 11520, while the sum is 33.

The square root of 5623881 is about 2371.4723274793. The cubic root of 5623881 is about 177.8328713650.

The spelling of 5623881 in words is "five million, six hundred twenty-three thousand, eight hundred eighty-one".