90441983 has 2 divisors, whose sum is σ = 90441984. Its totient is φ = 90441982.

The previous prime is 90441971. The next prime is 90441991. The reversal of 90441983 is 38914409.

It is a strong prime.

It is an emirp because it is prime and its reverse (38914409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90441983 - 2¹² = 90437887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90441913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45220991 + 45220992.

It is an arithmetic number, because the mean of its divisors is an integer number (45220992).

Almost surely, 2^90441983 is an apocalyptic number.

90441983 is a deficient number, since it is larger than the sum of its proper divisors (1).

90441983 is an equidigital number, since it uses as much as digits as its factorization.

90441983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 90441983 is about 9510.0990005362. The cubic root of 90441983 is about 448.8728713850.

The spelling of 90441983 in words is "ninety million, four hundred forty-one thousand, nine hundred eighty-three".