793921 has 4 divisors (see below), whose sum is σ = 795844. Its totient is φ = 792000.

The previous prime is 793901. The next prime is 793927. The reversal of 793921 is 129397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 129397 = 83 ⋅1559.

It can be written as a sum of positive squares in 2 ways, for example, as 703921 + 90000 = 839^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 793921 - 2⁵ = 793889 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (793927) 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, 60 + ... + 1261.

It is an arithmetic number, because the mean of its divisors is an integer number (198961).

2⁷⁹³⁹²¹ is an apocalyptic number.

It is an amenable number.

793921 is a deficient number, since it is larger than the sum of its proper divisors (1923).

793921 is a wasteful number, since it uses less digits than its factorization.

793921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922.

The product of its digits is 3402, while the sum is 31.

The square root of 793921 is about 891.0224464064. The cubic root of 793921 is about 92.5960434131.

The spelling of 793921 in words is "seven hundred ninety-three thousand, nine hundred twenty-one".