90608743 has 2 divisors, whose sum is σ = 90608744. Its totient is φ = 90608742.

The previous prime is 90608737. The next prime is 90608773. The reversal of 90608743 is 34780609.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90608743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90608773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45304371 + 45304372.

It is an arithmetic number, because the mean of its divisors is an integer number (45304372).

Almost surely, 2^90608743 is an apocalyptic number.

90608743 is a deficient number, since it is larger than the sum of its proper divisors (1).

90608743 is an equidigital number, since it uses as much as digits as its factorization.

90608743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 90608743 is about 9518.8624845619. The cubic root of 90608743 is about 449.1485843466.

The spelling of 90608743 in words is "ninety million, six hundred eight thousand, seven hundred forty-three".