90260693 has 2 divisors, whose sum is σ = 90260694. Its totient is φ = 90260692.

The previous prime is 90260657. The next prime is 90260707. The reversal of 90260693 is 39606209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71537764 + 18722929 = 8458^2 + 4327^2 .

It is a cyclic number.

It is not a de Polignac number, because 90260693 - 2¹⁰ = 90259669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90260603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45130346 + 45130347.

It is an arithmetic number, because the mean of its divisors is an integer number (45130347).

Almost surely, 2^90260693 is an apocalyptic number.

It is an amenable number.

90260693 is a deficient number, since it is larger than the sum of its proper divisors (1).

90260693 is an equidigital number, since it uses as much as digits as its factorization.

90260693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 90260693 is about 9500.5627728046. The cubic root of 90260693 is about 448.5727504554.

The spelling of 90260693 in words is "ninety million, two hundred sixty thousand, six hundred ninety-three".