993213919 has 2 divisors, whose sum is σ = 993213920. Its totient is φ = 993213918.

The previous prime is 993213913. The next prime is 993213989. The reversal of 993213919 is 919312399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 993213919 - 2¹³ = 993205727 is a prime.

It is a super-2 number, since 2×993213919² = 1972947777790677122, which contains 22 as substring.

It is equal to p_50519998 and since 993213919 and 50519998 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993213913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496606959 + 496606960.

It is an arithmetic number, because the mean of its divisors is an integer number (496606960).

Almost surely, 2^993213919 is an apocalyptic number.

993213919 is a deficient number, since it is larger than the sum of its proper divisors (1).

993213919 is an equidigital number, since it uses as much as digits as its factorization.

993213919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118098, while the sum is 46.

The square root of 993213919 is about 31515.2965875303. The cubic root of 993213919 is about 997.7328368557.

The spelling of 993213919 in words is "nine hundred ninety-three million, two hundred thirteen thousand, nine hundred nineteen".