578382991 has 4 divisors (see below), whose sum is σ = 579763800. Its totient is φ = 577002184.

The previous prime is 578382983. The next prime is 578383037. The reversal of 578382991 is 199283875.

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

It is a cyclic number.

It is not a de Polignac number, because 578382991 - 2³ = 578382983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578382911) 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, 689776 + ... + 690613.

It is an arithmetic number, because the mean of its divisors is an integer number (144940950).

Almost surely, 2^578382991 is an apocalyptic number.

578382991 is a deficient number, since it is larger than the sum of its proper divisors (1380809).

578382991 is a wasteful number, since it uses less digits than its factorization.

578382991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380808.

The product of its digits is 1088640, while the sum is 52.

The square root of 578382991 is about 24049.5944040643. The cubic root of 578382991 is about 833.1793627890.

The spelling of 578382991 in words is "five hundred seventy-eight million, three hundred eighty-two thousand, nine hundred ninety-one".