90845518 has 8 divisors (see below), whose sum is σ = 144284112. Its totient is φ = 42750816.

The previous prime is 90845477. The next prime is 90845519. The reversal of 90845518 is 81554809.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90845519) 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 3 ways as a sum of consecutive naturals, for example, 1335930 + ... + 1335997.

It is an arithmetic number, because the mean of its divisors is an integer number (18035514).

Almost surely, 2^90845518 is an apocalyptic number.

90845518 is a deficient number, since it is larger than the sum of its proper divisors (53438594).

90845518 is a wasteful number, since it uses less digits than its factorization.

90845518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671946.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 90845518 is about 9531.2915179424. The cubic root of 90845518 is about 449.5394761921.

The spelling of 90845518 in words is "ninety million, eight hundred forty-five thousand, five hundred eighteen".