90247667 has 2 divisors, whose sum is σ = 90247668. Its totient is φ = 90247666.

The previous prime is 90247631. The next prime is 90247687. The reversal of 90247667 is 76674209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90247667 - 2¹⁸ = 89985523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90247687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45123833 + 45123834.

It is an arithmetic number, because the mean of its divisors is an integer number (45123834).

Almost surely, 2^90247667 is an apocalyptic number.

90247667 is a deficient number, since it is larger than the sum of its proper divisors (1).

90247667 is an equidigital number, since it uses as much as digits as its factorization.

90247667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 90247667 is about 9499.8772097328. The cubic root of 90247667 is about 448.5511707786.

The spelling of 90247667 in words is "ninety million, two hundred forty-seven thousand, six hundred sixty-seven".