90825845 has 8 divisors (see below), whose sum is σ = 118899360. Its totient is φ = 66055120.

The previous prime is 90825817. The next prime is 90825851. The reversal of 90825845 is 54852809.

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

It is not a de Polignac number, because 90825845 - 2¹² = 90821749 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, 825635 + ... + 825744.

It is an arithmetic number, because the mean of its divisors is an integer number (14862420).

Almost surely, 2^90825845 is an apocalyptic number.

It is an amenable number.

90825845 is a deficient number, since it is larger than the sum of its proper divisors (28073515).

90825845 is a wasteful number, since it uses less digits than its factorization.

90825845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651395.

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

The square root of 90825845 is about 9530.2594403300. The cubic root of 90825845 is about 449.5070239268.

The spelling of 90825845 in words is "ninety million, eight hundred twenty-five thousand, eight hundred forty-five".