791045 has 4 divisors (see below), whose sum is σ = 949260. Its totient is φ = 632832.

The previous prime is 791029. The next prime is 791047. The reversal of 791045 is 540197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540197 = 7 ⋅77171.

It can be written as a sum of positive squares in 2 ways, for example, as 185761 + 605284 = 431^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 791045 - 2⁴ = 791029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791047) 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, 79100 + ... + 79109.

It is an arithmetic number, because the mean of its divisors is an integer number (237315).

2⁷⁹¹⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

791045 is a deficient number, since it is larger than the sum of its proper divisors (158215).

791045 is a wasteful number, since it uses less digits than its factorization.

791045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158214.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 791045 is about 889.4071058857. The cubic root of 791045 is about 92.4840975828.

The spelling of 791045 in words is "seven hundred ninety-one thousand, forty-five".