993393629 has 2 divisors, whose sum is σ = 993393630. Its totient is φ = 993393628.

The previous prime is 993393617. The next prime is 993393631. The reversal of 993393629 is 926393399.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990801529 + 2592100 = 31477^2 + 1610^2 .

It is an emirp because it is prime and its reverse (926393399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 993393629 - 2¹⁶ = 993328093 is a prime.

Together with 993393631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993393659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496696814 + 496696815.

It is an arithmetic number, because the mean of its divisors is an integer number (496696815).

Almost surely, 2^993393629 is an apocalyptic number.

It is an amenable number.

993393629 is a deficient number, since it is larger than the sum of its proper divisors (1).

993393629 is an equidigital number, since it uses as much as digits as its factorization.

993393629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2125764, while the sum is 53.

The square root of 993393629 is about 31518.1476137161. The cubic root of 993393629 is about 997.7930091078.

The spelling of 993393629 in words is "nine hundred ninety-three million, three hundred ninety-three thousand, six hundred twenty-nine".