90022393939 has 2 divisors, whose sum is σ = 90022393940. Its totient is φ = 90022393938.

The previous prime is 90022393919. The next prime is 90022393969. The reversal of 90022393939 is 93939322009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90022393939 - 2³⁵ = 55662655571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90022393892 and 90022393901.

It is not a weakly prime, because it can be changed into another prime (90022393919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45011196969 + 45011196970.

It is an arithmetic number, because the mean of its divisors is an integer number (45011196970).

Almost surely, 2^90022393939 is an apocalyptic number.

90022393939 is a deficient number, since it is larger than the sum of its proper divisors (1).

90022393939 is an equidigital number, since it uses as much as digits as its factorization.

90022393939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 708588, while the sum is 49.

The spelling of 90022393939 in words is "ninety billion, twenty-two million, three hundred ninety-three thousand, nine hundred thirty-nine".