90506167 has 2 divisors, whose sum is σ = 90506168. Its totient is φ = 90506166.

The previous prime is 90506153. The next prime is 90506183. The reversal of 90506167 is 76160509.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90506167 - 2¹¹ = 90504119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90506137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45253083 + 45253084.

It is an arithmetic number, because the mean of its divisors is an integer number (45253084).

Almost surely, 2^90506167 is an apocalyptic number.

90506167 is a deficient number, since it is larger than the sum of its proper divisors (1).

90506167 is an equidigital number, since it uses as much as digits as its factorization.

90506167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 90506167 is about 9513.4729200224. The cubic root of 90506167 is about 448.9790302093.

The spelling of 90506167 in words is "ninety million, five hundred six thousand, one hundred sixty-seven".