7999222037 has 2 divisors, whose sum is σ = 7999222038. Its totient is φ = 7999222036.

The previous prime is 7999221983. The next prime is 7999222039. The reversal of 7999222037 is 7302229997.

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., 4721201521 + 3278020516 = 68711^2 + 57254^2 .

It is a cyclic number.

It is not a de Polignac number, because 7999222037 - 2²⁰ = 7998173461 is a prime.

Together with 7999222039, 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 (7999222039) 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, 3999611018 + 3999611019.

It is an arithmetic number, because the mean of its divisors is an integer number (3999611019).

Almost surely, 2^7999222037 is an apocalyptic number.

It is an amenable number.

7999222037 is a deficient number, since it is larger than the sum of its proper divisors (1).

7999222037 is an equidigital number, since it uses as much as digits as its factorization.

7999222037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 7999222037 is about 89438.3700488778. The cubic root of 7999222037 is about 1999.9351676484.

The spelling of 7999222037 in words is "seven billion, nine hundred ninety-nine million, two hundred twenty-two thousand, thirty-seven".