994381593 has 4 divisors (see below), whose sum is σ = 1325842128. Its totient is φ = 662921060.

The previous prime is 994381589. The next prime is 994381607. The reversal of 994381593 is 395183499.

It is a happy number.

994381593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 994381593 - 2² = 994381589 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994381543) 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, 165730263 + ... + 165730268.

It is an arithmetic number, because the mean of its divisors is an integer number (331460532).

Almost surely, 2^994381593 is an apocalyptic number.

It is an amenable number.

994381593 is a deficient number, since it is larger than the sum of its proper divisors (331460535).

994381593 is a wasteful number, since it uses less digits than its factorization.

994381593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331460534.

The product of its digits is 1049760, while the sum is 51.

The square root of 994381593 is about 31533.8166576772. The cubic root of 994381593 is about 998.1236792892.

The spelling of 994381593 in words is "nine hundred ninety-four million, three hundred eighty-one thousand, five hundred ninety-three".