9091010 has 16 divisors (see below), whose sum is σ = 16527672. Its totient is φ = 3600000.

The previous prime is 9091009. The next prime is 9091021. The reversal of 9091010 is 101909.

9091010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8048569 + 1042441 = 2837^2 + 1021^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3491 + ... + 5510.

Almost surely, 2^9091010 is an apocalyptic number.

9091010 is a deficient number, since it is larger than the sum of its proper divisors (7436662).

9091010 is a wasteful number, since it uses less digits than its factorization.

9091010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9109.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 9091010 is about 3015.1301796108. The cubic root of 9091010 is about 208.7071744532.

Adding to 9091010 its reverse (101909), we get a palindrome (9192919).

The spelling of 9091010 in words is "nine million, ninety-one thousand, ten".