90838245 has 8 divisors (see below), whose sum is σ = 145341216. Its totient is φ = 48447056.

The previous prime is 90838217. The next prime is 90838249. The reversal of 90838245 is 54283809.

It is a happy number.

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 90838245 - 2⁵ = 90838213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90838249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3027927 + ... + 3027956.

It is an arithmetic number, because the mean of its divisors is an integer number (18167652).

Almost surely, 2^90838245 is an apocalyptic number.

It is an amenable number.

90838245 is a deficient number, since it is larger than the sum of its proper divisors (54502971).

90838245 is a wasteful number, since it uses less digits than its factorization.

90838245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055891.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 90838245 is about 9530.9099775415. The cubic root of 90838245 is about 449.5274793139.

The spelling of 90838245 in words is "ninety million, eight hundred thirty-eight thousand, two hundred forty-five".