993703941409 has 3 divisors (see below), whose sum is σ = 993704938257. Its totient is φ = 993702944562.

The previous prime is 993703941401. The next prime is 993703941449. The reversal of 993703941409 is 904149307399.

The square root of 993703941409 is 996847.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 993703941409 - 2³ = 993703941401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993703941401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 498424 + ... + 1495270.

It is an arithmetic number, because the mean of its divisors is an integer number (331234979419).

Almost surely, 2^993703941409 is an apocalyptic number.

993703941409 is the 996847-th square number.

993703941409 is the 498424-th centered octagonal number.

It is an amenable number.

993703941409 is a deficient number, since it is larger than the sum of its proper divisors (996848).

993703941409 is an frugal number, since it uses more digits than its factorization.

993703941409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993694 (or 996847 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 58.

The spelling of 993703941409 in words is "nine hundred ninety-three billion, seven hundred three million, nine hundred forty-one thousand, four hundred nine".