90010811 has 6 divisors (see below), whose sum is σ = 98937636. Its totient is φ = 81827900.

The previous prime is 90010709. The next prime is 90010819. The reversal of 90010811 is 11801009.

It is a de Polignac number, because none of the positive numbers 2^k-90010811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90010819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 371825 + ... + 372066.

It is an arithmetic number, because the mean of its divisors is an integer number (16489606).

Almost surely, 2^90010811 is an apocalyptic number.

90010811 is a deficient number, since it is larger than the sum of its proper divisors (8926825).

90010811 is a wasteful number, since it uses less digits than its factorization.

90010811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743913 (or 743902 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 90010811 is about 9487.4027531248. The cubic root of 90010811 is about 448.1584178138.

It can be divided in two parts, 900 and 10811, that added together give a palindrome (11711).

The spelling of 90010811 in words is "ninety million, ten thousand, eight hundred eleven".