993061423 has 2 divisors, whose sum is σ = 993061424. Its totient is φ = 993061422.

The previous prime is 993061411. The next prime is 993061439. The reversal of 993061423 is 324160399.

It is a weak prime.

It is an emirp because it is prime and its reverse (324160399) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-993061423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993011423) by changing a digit.

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 as a sum of consecutive naturals, namely, 496530711 + 496530712.

It is an arithmetic number, because the mean of its divisors is an integer number (496530712).

Almost surely, 2^993061423 is an apocalyptic number.

993061423 is a deficient number, since it is larger than the sum of its proper divisors (1).

993061423 is an equidigital number, since it uses as much as digits as its factorization.

993061423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 993061423 is about 31512.8770981007. The cubic root of 993061423 is about 997.6817709670.

The spelling of 993061423 in words is "nine hundred ninety-three million, sixty-one thousand, four hundred twenty-three".