90983543 has 24 divisors (see below), whose sum is σ = 110643840. Its totient is φ = 74511360.

The previous prime is 90983537. The next prime is 90983549. The reversal of 90983543 is 34538909.

It is an interprime number because it is at equal distance from previous prime (90983537) and next prime (90983549).

It is not a de Polignac number, because 90983543 - 2⁶ = 90983479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90983543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90983549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134855 + ... + 135527.

It is an arithmetic number, because the mean of its divisors is an integer number (4610160).

Almost surely, 2^90983543 is an apocalyptic number.

90983543 is a deficient number, since it is larger than the sum of its proper divisors (19660297).

90983543 is a wasteful number, since it uses less digits than its factorization.

90983543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 90983543 is about 9538.5293939894. The cubic root of 90983543 is about 449.7670283792.

The spelling of 90983543 in words is "ninety million, nine hundred eighty-three thousand, five hundred forty-three".