842400593 has 4 divisors (see below), whose sum is σ = 842634480. Its totient is φ = 842166708.

The previous prime is 842400583. The next prime is 842400619. The reversal of 842400593 is 395004248.

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.

It is a cyclic number.

It is not a de Polignac number, because 842400593 - 2⁴ = 842400577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842400523) 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, 111455 + ... + 118772.

It is an arithmetic number, because the mean of its divisors is an integer number (210658620).

Almost surely, 2^842400593 is an apocalyptic number.

It is an amenable number.

842400593 is a deficient number, since it is larger than the sum of its proper divisors (233887).

842400593 is a wasteful number, since it uses less digits than its factorization.

842400593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233886.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 842400593 is about 29024.1381095115. The cubic root of 842400593 is about 944.4367715881.

The spelling of 842400593 in words is "eight hundred forty-two million, four hundred thousand, five hundred ninety-three".