993430355 has 8 divisors (see below), whose sum is σ = 1208447232. Its totient is φ = 783857088.

The previous prime is 993430349. The next prime is 993430381. The reversal of 993430355 is 553034399.

993430355 = 5740² + 5741² + ... + 5769².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 993430355 - 2²⁰ = 992381779 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360499 + ... + 1361228.

It is an arithmetic number, because the mean of its divisors is an integer number (151055904).

Almost surely, 2^993430355 is an apocalyptic number.

993430355 is a deficient number, since it is larger than the sum of its proper divisors (215016877).

993430355 is a wasteful number, since it uses less digits than its factorization.

993430355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721805.

The product of its (nonzero) digits is 218700, while the sum is 41.

The square root of 993430355 is about 31518.7302250582. The cubic root of 993430355 is about 997.8053051717.

The spelling of 993430355 in words is "nine hundred ninety-three million, four hundred thirty thousand, three hundred fifty-five".