791281 has 4 divisors (see below), whose sum is σ = 793152. Its totient is φ = 789412.

The previous prime is 791261. The next prime is 791291. The reversal of 791281 is 182197.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182197 = 167 ⋅1091.

It is a cyclic number.

It is not a de Polignac number, because 791281 - 2¹³ = 783089 is a prime.

It is a super-2 number, since 2×791281² = 1252251241922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791201) 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, 36 + ... + 1258.

It is an arithmetic number, because the mean of its divisors is an integer number (198288).

2⁷⁹¹²⁸¹ is an apocalyptic number.

It is an amenable number.

791281 is a deficient number, since it is larger than the sum of its proper divisors (1871).

791281 is a wasteful number, since it uses less digits than its factorization.

791281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its digits is 1008, while the sum is 28.

The square root of 791281 is about 889.5397686444. The cubic root of 791281 is about 92.4932938893.

The spelling of 791281 in words is "seven hundred ninety-one thousand, two hundred eighty-one".