793139721 has 8 divisors (see below), whose sum is σ = 1153657824. Its totient is φ = 480690720.

The previous prime is 793139713. The next prime is 793139723. The reversal of 793139721 is 127931397.

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

It is not a de Polignac number, because 793139721 - 2³ = 793139713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (793139723) 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, 12017236 + ... + 12017301.

It is an arithmetic number, because the mean of its divisors is an integer number (144207228).

Almost surely, 2^793139721 is an apocalyptic number.

It is an amenable number.

793139721 is a deficient number, since it is larger than the sum of its proper divisors (360518103).

793139721 is a wasteful number, since it uses less digits than its factorization.

793139721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24034551.

The product of its digits is 71442, while the sum is 42.

The square root of 793139721 is about 28162.7363904859. The cubic root of 793139721 is about 925.6565958079.

The spelling of 793139721 in words is "seven hundred ninety-three million, one hundred thirty-nine thousand, seven hundred twenty-one".