90660007 has 2 divisors, whose sum is σ = 90660008. Its totient is φ = 90660006.

The previous prime is 90659999. The next prime is 90660019. The reversal of 90660007 is 70006609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90660007 - 2³ = 90659999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90660107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45330003 + 45330004.

It is an arithmetic number, because the mean of its divisors is an integer number (45330004).

Almost surely, 2^90660007 is an apocalyptic number.

90660007 is a deficient number, since it is larger than the sum of its proper divisors (1).

90660007 is an equidigital number, since it uses as much as digits as its factorization.

90660007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 90660007 is about 9521.5548625211. The cubic root of 90660007 is about 449.2332737901.

The spelling of 90660007 in words is "ninety million, six hundred sixty thousand, seven".