90411949 has 2 divisors, whose sum is σ = 90411950. Its totient is φ = 90411948.

The previous prime is 90411947. The next prime is 90411953. The reversal of 90411949 is 94911409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90383049 + 28900 = 9507^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 90411949 - 2¹ = 90411947 is a prime.

Together with 90411947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90411947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45205974 + 45205975.

It is an arithmetic number, because the mean of its divisors is an integer number (45205975).

Almost surely, 2^90411949 is an apocalyptic number.

It is an amenable number.

90411949 is a deficient number, since it is larger than the sum of its proper divisors (1).

90411949 is an equidigital number, since it uses as much as digits as its factorization.

90411949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 90411949 is about 9508.5198112009. The cubic root of 90411949 is about 448.8231786061.

The spelling of 90411949 in words is "ninety million, four hundred eleven thousand, nine hundred forty-nine".