992919397 has 2 divisors, whose sum is σ = 992919398. Its totient is φ = 992919396.

The previous prime is 992919377. The next prime is 992919413. The reversal of 992919397 is 793919299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582208641 + 410710756 = 24129^2 + 20266^2 .

It is an emirp because it is prime and its reverse (793919299) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-992919397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992919377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496459698 + 496459699.

It is an arithmetic number, because the mean of its divisors is an integer number (496459699).

Almost surely, 2^992919397 is an apocalyptic number.

It is an amenable number.

992919397 is a deficient number, since it is larger than the sum of its proper divisors (1).

992919397 is an equidigital number, since it uses as much as digits as its factorization.

992919397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2480058, while the sum is 58.

The square root of 992919397 is about 31510.6235577781. The cubic root of 992919397 is about 997.6342064346.

The spelling of 992919397 in words is "nine hundred ninety-two million, nine hundred nineteen thousand, three hundred ninety-seven".