900011 has 16 divisors (see below), whose sum is σ = 1109760. Its totient is φ = 712800.

The previous prime is 900007. The next prime is 900019. The reversal of 900011 is 110009.

It is a cyclic number.

It is not a de Polignac number, because 900011 - 2² = 900007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 899965 and 900001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8861 + ... + 8961.

It is an arithmetic number, because the mean of its divisors is an integer number (69360).

2⁹⁰⁰⁰¹¹ is an apocalyptic number.

900011 is a deficient number, since it is larger than the sum of its proper divisors (209749).

900011 is a wasteful number, since it uses less digits than its factorization.

900011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 900011 is about 948.6890955418. The cubic root of 900011 is about 96.5493318065.

The spelling of 900011 in words is "nine hundred thousand, eleven".