993000425 has 6 divisors (see below), whose sum is σ = 1231320558. Its totient is φ = 794400320.

The previous prime is 993000389. The next prime is 993000431. The reversal of 993000425 is 524000399.

It can be written as a sum of positive squares in 3 ways, for example, as 286557184 + 706443241 = 16928^2 + 26579^2 .

It is not a de Polignac number, because 993000425 - 2¹⁸ = 992738281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 993000391 and 993000400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19859984 + ... + 19860033.

It is an arithmetic number, because the mean of its divisors is an integer number (205220093).

Almost surely, 2^993000425 is an apocalyptic number.

It is an amenable number.

993000425 is a deficient number, since it is larger than the sum of its proper divisors (238320133).

993000425 is a wasteful number, since it uses less digits than its factorization.

993000425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39720027 (or 39720022 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 993000425 is about 31511.9092566604. The cubic root of 993000425 is about 997.6613432817.

The spelling of 993000425 in words is "nine hundred ninety-three million, four hundred twenty-five", and thus it is an aban number.