993864373 has 2 divisors, whose sum is σ = 993864374. Its totient is φ = 993864372.

The previous prime is 993864359. The next prime is 993864449. The reversal of 993864373 is 373468399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 747311569 + 246552804 = 27337^2 + 15702^2 .

It is a cyclic number.

It is not a de Polignac number, because 993864373 - 2⁹ = 993863861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993864373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993864343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496932186 + 496932187.

It is an arithmetic number, because the mean of its divisors is an integer number (496932187).

Almost surely, 2^993864373 is an apocalyptic number.

It is an amenable number.

993864373 is a deficient number, since it is larger than the sum of its proper divisors (1).

993864373 is an equidigital number, since it uses as much as digits as its factorization.

993864373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 52.

The square root of 993864373 is about 31525.6145538830. The cubic root of 993864373 is about 997.9505938035.

The spelling of 993864373 in words is "nine hundred ninety-three million, eight hundred sixty-four thousand, three hundred seventy-three".