790045 has 4 divisors (see below), whose sum is σ = 948060. Its totient is φ = 632032.

The previous prime is 790043. The next prime is 790051. The reversal of 790045 is 540097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540097 = 71 ⋅7607.

It can be written as a sum of positive squares in 2 ways, for example, as 599076 + 190969 = 774^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 790045 - 2¹ = 790043 is a prime.

It is a super-2 number, since 2×790045² = 1248342204050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (790043) 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, 79000 + ... + 79009.

It is an arithmetic number, because the mean of its divisors is an integer number (237015).

2⁷⁹⁰⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

790045 is a deficient number, since it is larger than the sum of its proper divisors (158015).

790045 is a wasteful number, since it uses less digits than its factorization.

790045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158014.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 790045 is about 888.8447558488. The cubic root of 790045 is about 92.4451098740.

The spelling of 790045 in words is "seven hundred ninety thousand, forty-five".