5736393721 has 16 divisors (see below), whose sum is σ = 6088320000. Its totient is φ = 5389622928.

The previous prime is 5736393713. The next prime is 5736393743. The reversal of 5736393721 is 1273936375.

It is a cyclic number.

It is not a de Polignac number, because 5736393721 - 2³ = 5736393713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5736393781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581516 + ... + 1585138.

It is an arithmetic number, because the mean of its divisors is an integer number (380520000).

Almost surely, 2^5736393721 is an apocalyptic number.

It is an amenable number.

5736393721 is a deficient number, since it is larger than the sum of its proper divisors (351926279).

5736393721 is a wasteful number, since it uses less digits than its factorization.

5736393721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308.

The product of its digits is 714420, while the sum is 46.

The square root of 5736393721 is about 75738.9841561134. The cubic root of 5736393721 is about 1790.1097194587.

The spelling of 5736393721 in words is "five billion, seven hundred thirty-six million, three hundred ninety-three thousand, seven hundred twenty-one".