403089 has 4 divisors (see below), whose sum is σ = 537456. Its totient is φ = 268724.

The previous prime is 403079. The next prime is 403097. The reversal of 403089 is 980304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403089 - 2⁵ = 403057 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (403049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67179 + ... + 67184.

It is an arithmetic number, because the mean of its divisors is an integer number (134364).

2⁴⁰³⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

403089 is a deficient number, since it is larger than the sum of its proper divisors (134367).

403089 is a wasteful number, since it uses less digits than its factorization.

403089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134366.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 403089 is about 634.8929043547. The cubic root of 403089 is about 73.8698100459.

The spelling of 403089 in words is "four hundred three thousand, eighty-nine".