578840993 has 4 divisors (see below), whose sum is σ = 592959108. Its totient is φ = 564722880.

The previous prime is 578840953. The next prime is 578841013. The reversal of 578840993 is 399048875.

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 68442529 + 510398464 = 8273^2 + 22592^2 .

It is a cyclic number.

It is not a de Polignac number, because 578840993 - 2⁶ = 578840929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (578840953) 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, 7058996 + ... + 7059077.

It is an arithmetic number, because the mean of its divisors is an integer number (148239777).

Almost surely, 2^578840993 is an apocalyptic number.

It is an amenable number.

578840993 is a deficient number, since it is larger than the sum of its proper divisors (14118115).

578840993 is a wasteful number, since it uses less digits than its factorization.

578840993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14118114.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 578840993 is about 24059.1145514543. The cubic root of 578840993 is about 833.3992269851.

The spelling of 578840993 in words is "five hundred seventy-eight million, eight hundred forty thousand, nine hundred ninety-three".