791990 has 16 divisors (see below), whose sum is σ = 1475280. Its totient is φ = 305760.

The previous prime is 791971. The next prime is 791993. The reversal of 791990 is 99197.

It is a happy number.

791990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 791990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791993) 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, 1076 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (92205).

2⁷⁹¹⁹⁹⁰ is an apocalyptic number.

791990 is a deficient number, since it is larger than the sum of its proper divisors (683290).

791990 is a wasteful number, since it uses less digits than its factorization.

791990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 791990 is about 889.9382001016. The cubic root of 791990 is about 92.5209107826.

The spelling of 791990 in words is "seven hundred ninety-one thousand, nine hundred ninety".