89901011 has 4 divisors (see below), whose sum is σ = 89927400. Its totient is φ = 89874624.

The previous prime is 89901001. The next prime is 89901029. The reversal of 89901011 is 11010998.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89901011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89901001) 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 3 ways as a sum of consecutive naturals, for example, 7166 + ... + 15203.

It is an arithmetic number, because the mean of its divisors is an integer number (22481850).

Almost surely, 2^89901011 is an apocalyptic number.

89901011 is a deficient number, since it is larger than the sum of its proper divisors (26389).

89901011 is a wasteful number, since it uses less digits than its factorization.

89901011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26388.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 89901011 is about 9481.6143667627. The cubic root of 89901011 is about 447.9761144658.

It can be divided in two parts, 8990 and 1011, that added together give a palindrome (10001).

The spelling of 89901011 in words is "eighty-nine million, nine hundred one thousand, eleven".