90847118 has 4 divisors (see below), whose sum is σ = 136270680. Its totient is φ = 45423558.

The previous prime is 90847091. The next prime is 90847123. The reversal of 90847118 is 81174809.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22711778 + ... + 22711781.

It is an arithmetic number, because the mean of its divisors is an integer number (34067670).

Almost surely, 2^90847118 is an apocalyptic number.

90847118 is a deficient number, since it is larger than the sum of its proper divisors (45423562).

90847118 is a wasteful number, since it uses less digits than its factorization.

90847118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45423561.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 90847118 is about 9531.3754516334. The cubic root of 90847118 is about 449.5421153205.

The spelling of 90847118 in words is "ninety million, eight hundred forty-seven thousand, one hundred eighteen".