90993041 has 2 divisors, whose sum is σ = 90993042. Its totient is φ = 90993040.

The previous prime is 90993017. The next prime is 90993043. The reversal of 90993041 is 14039909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90174016 + 819025 = 9496^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 90993041 - 2¹⁰ = 90992017 is a prime.

Together with 90993043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90992992 and 90993010.

It is not a weakly prime, because it can be changed into another prime (90993043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45496520 + 45496521.

It is an arithmetic number, because the mean of its divisors is an integer number (45496521).

Almost surely, 2^90993041 is an apocalyptic number.

It is an amenable number.

90993041 is a deficient number, since it is larger than the sum of its proper divisors (1).

90993041 is an equidigital number, since it uses as much as digits as its factorization.

90993041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 90993041 is about 9539.0272564869. The cubic root of 90993041 is about 449.7826786036.

The spelling of 90993041 in words is "ninety million, nine hundred ninety-three thousand, forty-one".