791900072 has 16 divisors (see below), whose sum is σ = 1486941300. Its totient is φ = 395382400.

The previous prime is 791900063. The next prime is 791900077. The reversal of 791900072 is 270009197.

It can be written as a sum of positive squares in 2 ways, for example, as 790396996 + 1503076 = 28114^2 + 1226^2 .

It is not an unprimeable number, because it can be changed into a prime (791900077) 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, 64997 + ... + 76212.

Almost surely, 2^791900072 is an apocalyptic number.

It is an amenable number.

791900072 is a deficient number, since it is larger than the sum of its proper divisors (695041228).

791900072 is a wasteful number, since it uses less digits than its factorization.

791900072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141916 (or 141912 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 791900072 is about 28140.7191095039. The cubic root of 791900072 is about 925.1740882955.

The spelling of 791900072 in words is "seven hundred ninety-one million, nine hundred thousand, seventy-two".