90249007 has 2 divisors, whose sum is σ = 90249008. Its totient is φ = 90249006.

The previous prime is 90249001. The next prime is 90249011. The reversal of 90249007 is 70094209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90249007 - 2³ = 90248999 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90249007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90249001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45124503 + 45124504.

It is an arithmetic number, because the mean of its divisors is an integer number (45124504).

Almost surely, 2^90249007 is an apocalyptic number.

90249007 is a deficient number, since it is larger than the sum of its proper divisors (1).

90249007 is an equidigital number, since it uses as much as digits as its factorization.

90249007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 90249007 is about 9499.9477366983. The cubic root of 90249007 is about 448.5533908012.

The spelling of 90249007 in words is "ninety million, two hundred forty-nine thousand, seven".