9090091007 has 2 divisors, whose sum is σ = 9090091008. Its totient is φ = 9090091006.

The previous prime is 9090090967. The next prime is 9090091009. The reversal of 9090091007 is 7001900909.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9090091007 is a prime.

It is a super-3 number, since 3×9090091007³ (a number of 31 digits) contains 333 as substring.

Together with 9090091009, 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 (9090091009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4545045503 + 4545045504.

It is an arithmetic number, because the mean of its divisors is an integer number (4545045504).

Almost surely, 2^9090091007 is an apocalyptic number.

9090091007 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090091007 is an equidigital number, since it uses as much as digits as its factorization.

9090091007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 9090091007 is about 95341.9687598279. The cubic root of 9090091007 is about 2087.0014161171.

The spelling of 9090091007 in words is "nine billion, ninety million, ninety-one thousand, seven".