874790393 has 4 divisors (see below), whose sum is σ = 875046900. Its totient is φ = 874533888.

The previous prime is 874790383. The next prime is 874790401. The reversal of 874790393 is 393097478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 316555264 + 558235129 = 17792^2 + 23627^2 .

It is a cyclic number.

It is not a de Polignac number, because 874790393 - 2¹⁰ = 874789369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (874790353) 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, 123068 + ... + 129981.

It is an arithmetic number, because the mean of its divisors is an integer number (218761725).

Almost surely, 2^874790393 is an apocalyptic number.

It is an amenable number.

874790393 is a deficient number, since it is larger than the sum of its proper divisors (256507).

874790393 is a wasteful number, since it uses less digits than its factorization.

874790393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256506.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 874790393 is about 29576.8556983328. The cubic root of 874790393 is about 956.3892112361.

The spelling of 874790393 in words is "eight hundred seventy-four million, seven hundred ninety thousand, three hundred ninety-three".