5644947723 has 8 divisors (see below), whose sum is σ = 7629701328. Its totient is φ = 3711746304.

The previous prime is 5644947719. The next prime is 5644947769. The reversal of 5644947723 is 3277494465.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5644947723 - 2² = 5644947719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5644947323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12887790 + ... + 12888227.

It is an arithmetic number, because the mean of its divisors is an integer number (953712666).

Almost surely, 2^5644947723 is an apocalyptic number.

5644947723 is a deficient number, since it is larger than the sum of its proper divisors (1984753605).

5644947723 is a wasteful number, since it uses less digits than its factorization.

5644947723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25776093.

The product of its digits is 5080320, while the sum is 51.

The square root of 5644947723 is about 75132.8671288405. The cubic root of 5644947723 is about 1780.5464512335.

The spelling of 5644947723 in words is "five billion, six hundred forty-four million, nine hundred forty-seven thousand, seven hundred twenty-three".