999022373 has 2 divisors, whose sum is σ = 999022374. Its totient is φ = 999022372.

The previous prime is 999022351. The next prime is 999022393. The reversal of 999022373 is 373220999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 878944609 + 120077764 = 29647^2 + 10958^2 .

It is an emirp because it is prime and its reverse (373220999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999022373 - 2¹⁸ = 998760229 is a prime.

It is a super-2 number, since 2×999022373² = 1996091403509102258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999022393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499511186 + 499511187.

It is an arithmetic number, because the mean of its divisors is an integer number (499511187).

Almost surely, 2^999022373 is an apocalyptic number.

It is an amenable number.

999022373 is a deficient number, since it is larger than the sum of its proper divisors (1).

999022373 is an equidigital number, since it uses as much as digits as its factorization.

999022373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 999022373 is about 31607.3151817740. The cubic root of 999022373 is about 999.6740180807.

The spelling of 999022373 in words is "nine hundred ninety-nine million, twenty-two thousand, three hundred seventy-three".