790744721 has 4 divisors (see below), whose sum is σ = 851571252. Its totient is φ = 729918192.

The previous prime is 790744697. The next prime is 790744741. The reversal of 790744721 is 127447097.

790744721 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 127447097 = 2687 ⋅47431.

It can be written as a sum of positive squares in 2 ways, for example, as 543123025 + 247621696 = 23305^2 + 15736^2 .

It is a cyclic number.

It is not a de Polignac number, because 790744721 - 2⁶ = 790744657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (790744741) 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, 30413246 + ... + 30413271.

It is an arithmetic number, because the mean of its divisors is an integer number (212892813).

Almost surely, 2^790744721 is an apocalyptic number.

It is an amenable number.

790744721 is a deficient number, since it is larger than the sum of its proper divisors (60826531).

790744721 is a wasteful number, since it uses less digits than its factorization.

790744721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60826530.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 790744721 is about 28120.1835164709. The cubic root of 790744721 is about 924.7239384615.

The spelling of 790744721 in words is "seven hundred ninety million, seven hundred forty-four thousand, seven hundred twenty-one".