90802808 has 8 divisors (see below), whose sum is σ = 170255280. Its totient is φ = 45401400.

The previous prime is 90802807. The next prime is 90802819. The reversal of 90802808 is 80820809.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90802807) 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 as a sum of consecutive naturals, namely, 5675168 + ... + 5675183.

It is an arithmetic number, because the mean of its divisors is an integer number (21281910).

Almost surely, 2^90802808 is an apocalyptic number.

It is an amenable number.

90802808 is a deficient number, since it is larger than the sum of its proper divisors (79452472).

90802808 is a wasteful number, since it uses less digits than its factorization.

90802808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350357 (or 11350353 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 90802808 is about 9529.0507397117. The cubic root of 90802808 is about 449.4690165037.

The spelling of 90802808 in words is "ninety million, eight hundred two thousand, eight hundred eight".