90288827 has 4 divisors (see below), whose sum is σ = 90330240. Its totient is φ = 90247416.

The previous prime is 90288787. The next prime is 90288841. The reversal of 90288827 is 72888209.

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

It is a cyclic number.

It is not a de Polignac number, because 90288827 - 2⁶ = 90288763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90288127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17243 + ... + 21860.

It is an arithmetic number, because the mean of its divisors is an integer number (22582560).

Almost surely, 2^90288827 is an apocalyptic number.

90288827 is a deficient number, since it is larger than the sum of its proper divisors (41413).

90288827 is a wasteful number, since it uses less digits than its factorization.

90288827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41412.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 90288827 is about 9502.0433065736. The cubic root of 90288827 is about 448.6193518953.

The spelling of 90288827 in words is "ninety million, two hundred eighty-eight thousand, eight hundred twenty-seven".