90785741 has 2 divisors, whose sum is σ = 90785742. Its totient is φ = 90785740.

The previous prime is 90785731. The next prime is 90785777. The reversal of 90785741 is 14758709.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77616100 + 13169641 = 8810^2 + 3629^2 .

It is a cyclic number.

It is not a de Polignac number, because 90785741 - 2¹⁸ = 90523597 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 (90785711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45392870 + 45392871.

It is an arithmetic number, because the mean of its divisors is an integer number (45392871).

Almost surely, 2^90785741 is an apocalyptic number.

It is an amenable number.

90785741 is a deficient number, since it is larger than the sum of its proper divisors (1).

90785741 is an equidigital number, since it uses as much as digits as its factorization.

90785741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 90785741 is about 9528.1551729598. The cubic root of 90785741 is about 449.4408544952.

The spelling of 90785741 in words is "ninety million, seven hundred eighty-five thousand, seven hundred forty-one".