90167093 has 2 divisors, whose sum is σ = 90167094. Its totient is φ = 90167092.

The previous prime is 90167071. The next prime is 90167111. The reversal of 90167093 is 39076109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60497284 + 29669809 = 7778^2 + 5447^2 .

It is a cyclic number.

It is not a de Polignac number, because 90167093 - 2¹² = 90162997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90167023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45083546 + 45083547.

It is an arithmetic number, because the mean of its divisors is an integer number (45083547).

Almost surely, 2^90167093 is an apocalyptic number.

It is an amenable number.

90167093 is a deficient number, since it is larger than the sum of its proper divisors (1).

90167093 is an equidigital number, since it uses as much as digits as its factorization.

90167093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 90167093 is about 9495.6354710993. The cubic root of 90167093 is about 448.4176407406.

The spelling of 90167093 in words is "ninety million, one hundred sixty-seven thousand, ninety-three".