90907 has 2 divisors, whose sum is σ = 90908. Its totient is φ = 90906.

The previous prime is 90901. The next prime is 90911. The reversal of 90907 is 70909.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90907 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 90907.

It is not a weakly prime, because it can be changed into another prime (90901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45453 + 45454.

It is an arithmetic number, because the mean of its divisors is an integer number (45454).

2⁹⁰⁹⁰⁷ is an apocalyptic number.

90907 is a deficient number, since it is larger than the sum of its proper divisors (1).

90907 is an equidigital number, since it uses as much as digits as its factorization.

90907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 90907 is about 301.5078771774. The cubic root of 90907 is about 44.9640865723.

The spelling of 90907 in words is "ninety thousand, nine hundred seven".