90007 has 2 divisors, whose sum is σ = 90008. Its totient is φ = 90006.

The previous prime is 90001. The next prime is 90011. The reversal of 90007 is 70009.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90007 - 2¹¹ = 87959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45003 + 45004.

It is an arithmetic number, because the mean of its divisors is an integer number (45004).

2⁹⁰⁰⁰⁷ is an apocalyptic number.

90007 is a deficient number, since it is larger than the sum of its proper divisors (1).

90007 is an equidigital number, since it uses as much as digits as its factorization.

90007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 90007 is about 300.0116664398. The cubic root of 90007 is about 44.8152092811.

The spelling of 90007 in words is "ninety thousand, seven".