90775667 has 2 divisors, whose sum is σ = 90775668. Its totient is φ = 90775666.

The previous prime is 90775637. The next prime is 90775679. The reversal of 90775667 is 76657709.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90775667 - 2⁶ = 90775603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90775627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45387833 + 45387834.

It is an arithmetic number, because the mean of its divisors is an integer number (45387834).

Almost surely, 2^90775667 is an apocalyptic number.

90775667 is a deficient number, since it is larger than the sum of its proper divisors (1).

90775667 is an equidigital number, since it uses as much as digits as its factorization.

90775667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 555660, while the sum is 47.

The square root of 90775667 is about 9527.6265145103. The cubic root of 90775667 is about 449.4242298777.

The spelling of 90775667 in words is "ninety million, seven hundred seventy-five thousand, six hundred sixty-seven".