90858245 has 8 divisors (see below), whose sum is σ = 109234680. Its totient is φ = 72550080.

The previous prime is 90858239. The next prime is 90858343. The reversal of 90858245 is 54285809.

It can be written as a sum of positive squares in 4 ways, for example, as 29658916 + 61199329 = 5446^2 + 7823^2 .

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

It is not a de Polignac number, because 90858245 - 2⁶ = 90858181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14090 + ... + 19499.

It is an arithmetic number, because the mean of its divisors is an integer number (13654335).

Almost surely, 2^90858245 is an apocalyptic number.

It is an amenable number.

90858245 is a deficient number, since it is larger than the sum of its proper divisors (18376435).

90858245 is a wasteful number, since it uses less digits than its factorization.

90858245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34135.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 90858245 is about 9531.9591375540. The cubic root of 90858245 is about 449.5604679515.

The spelling of 90858245 in words is "ninety million, eight hundred fifty-eight thousand, two hundred forty-five".