90854237 has 8 divisors (see below), whose sum is σ = 93615480. Its totient is φ = 88119040.

The previous prime is 90854191. The next prime is 90854249. The reversal of 90854237 is 73245809.

It can be written as a sum of positive squares in 4 ways, for example, as 5827396 + 85026841 = 2414^2 + 9221^2 .

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 90854237 - 2¹⁴ = 90837853 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 90854237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90854287) 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, 689 + ... + 13497.

It is an arithmetic number, because the mean of its divisors is an integer number (11701935).

Almost surely, 2^90854237 is an apocalyptic number.

It is an amenable number.

90854237 is a deficient number, since it is larger than the sum of its proper divisors (2761243).

90854237 is a wasteful number, since it uses less digits than its factorization.

90854237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13023.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 90854237 is about 9531.7488951399. The cubic root of 90854237 is about 449.5538574164.

The spelling of 90854237 in words is "ninety million, eight hundred fifty-four thousand, two hundred thirty-seven".