90834243 has 4 divisors (see below), whose sum is σ = 121112328. Its totient is φ = 60556160.

The previous prime is 90834241. The next prime is 90834251. The reversal of 90834243 is 34243809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90834243 - 2¹ = 90834241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90834241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15139038 + ... + 15139043.

It is an arithmetic number, because the mean of its divisors is an integer number (30278082).

Almost surely, 2^90834243 is an apocalyptic number.

90834243 is a deficient number, since it is larger than the sum of its proper divisors (30278085).

90834243 is a wasteful number, since it uses less digits than its factorization.

90834243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30278084.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 90834243 is about 9530.7000267556. The cubic root of 90834243 is about 449.5208777061.

The spelling of 90834243 in words is "ninety million, eight hundred thirty-four thousand, two hundred forty-three".