90857383 has 4 divisors (see below), whose sum is σ = 94807728. Its totient is φ = 86907040.

The previous prime is 90857381. The next prime is 90857387. The reversal of 90857383 is 38375809.

It is a happy number.

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 90857383 - 2¹ = 90857381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90857381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1975138 + ... + 1975183.

It is an arithmetic number, because the mean of its divisors is an integer number (23701932).

Almost surely, 2^90857383 is an apocalyptic number.

90857383 is a deficient number, since it is larger than the sum of its proper divisors (3950345).

90857383 is a wasteful number, since it uses less digits than its factorization.

90857383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950344.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 90857383 is about 9531.9139211388. The cubic root of 90857383 is about 449.5590462411.

The spelling of 90857383 in words is "ninety million, eight hundred fifty-seven thousand, three hundred eighty-three".