90216943 has 8 divisors (see below), whose sum is σ = 96418512. Its totient is φ = 84114816.

The previous prime is 90216911. The next prime is 90216947. The reversal of 90216943 is 34961209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90216943 - 2⁵ = 90216911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90216899 and 90216908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90216947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22980 + ... + 26617.

It is an arithmetic number, because the mean of its divisors is an integer number (12052314).

Almost surely, 2^90216943 is an apocalyptic number.

90216943 is a deficient number, since it is larger than the sum of its proper divisors (6201569).

90216943 is a wasteful number, since it uses less digits than its factorization.

90216943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49721.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 90216943 is about 9498.2599985471. The cubic root of 90216943 is about 448.5002632747.

The spelling of 90216943 in words is "ninety million, two hundred sixteen thousand, nine hundred forty-three".