993000394 has 4 divisors (see below), whose sum is σ = 1489500594. Its totient is φ = 496500196.

The previous prime is 993000389. The next prime is 993000431. The reversal of 993000394 is 493000399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493000399 = 2153 ⋅228983.

It can be written as a sum of positive squares in only one way, i.e., 989920369 + 3080025 = 31463^2 + 1755^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248250097 + ... + 248250100.

Almost surely, 2^993000394 is an apocalyptic number.

993000394 is a deficient number, since it is larger than the sum of its proper divisors (496500200).

993000394 is a wasteful number, since it uses less digits than its factorization.

993000394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496500199.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 993000394 is about 31511.9087647829. The cubic root of 993000394 is about 997.6613328999.

The spelling of 993000394 in words is "nine hundred ninety-three million, three hundred ninety-four", and thus it is an aban number.