90733717 has 2 divisors, whose sum is σ = 90733718. Its totient is φ = 90733716.

The previous prime is 90733711. The next prime is 90733723. The reversal of 90733717 is 71733709.

It is a balanced prime because it is at equal distance from previous prime (90733711) and next prime (90733723).

It can be written as a sum of positive squares in only one way, i.e., 87497316 + 3236401 = 9354^2 + 1799^2 .

It is a cyclic number.

It is not a de Polignac number, because 90733717 - 2⁷ = 90733589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90733711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45366858 + 45366859.

It is an arithmetic number, because the mean of its divisors is an integer number (45366859).

Almost surely, 2^90733717 is an apocalyptic number.

It is an amenable number.

90733717 is a deficient number, since it is larger than the sum of its proper divisors (1).

90733717 is an equidigital number, since it uses as much as digits as its factorization.

90733717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27783, while the sum is 37.

The square root of 90733717 is about 9525.4247674316. The cubic root of 90733717 is about 449.3549886664.

The spelling of 90733717 in words is "ninety million, seven hundred thirty-three thousand, seven hundred seventeen".