5623691 has 4 divisors (see below), whose sum is σ = 5743392. Its totient is φ = 5503992.

The previous prime is 5623649. The next prime is 5623727. The reversal of 5623691 is 1963265.

It is a happy number.

5623691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5623691 - 2⁶ = 5623627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5623621) 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, 59780 + ... + 59873.

It is an arithmetic number, because the mean of its divisors is an integer number (1435848).

Almost surely, 2^5623691 is an apocalyptic number.

5623691 is a deficient number, since it is larger than the sum of its proper divisors (119701).

5623691 is a wasteful number, since it uses less digits than its factorization.

5623691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119700.

The product of its digits is 9720, while the sum is 32.

The square root of 5623691 is about 2371.4322676391. The cubic root of 5623691 is about 177.8308686777.

The spelling of 5623691 in words is "five million, six hundred twenty-three thousand, six hundred ninety-one".