795721521 has 8 divisors (see below), whose sum is σ = 1212528064. Its totient is φ = 454698000.

The previous prime is 795721513. The next prime is 795721561. The reversal of 795721521 is 125127597.

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 795721521 - 2³ = 795721513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 795721521.

It is not an unprimeable number, because it can be changed into a prime (795721561) 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, 18945730 + ... + 18945771.

It is an arithmetic number, because the mean of its divisors is an integer number (151566008).

Almost surely, 2^795721521 is an apocalyptic number.

It is an amenable number.

795721521 is a deficient number, since it is larger than the sum of its proper divisors (416806543).

795721521 is a wasteful number, since it uses less digits than its factorization.

795721521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37891511.

The product of its digits is 44100, while the sum is 39.

The square root of 795721521 is about 28208.5363143854. The cubic root of 795721521 is about 926.6598960193.

The spelling of 795721521 in words is "seven hundred ninety-five million, seven hundred twenty-one thousand, five hundred twenty-one".