289433069 has 4 divisors (see below), whose sum is σ = 291208896. Its totient is φ = 287657244.

The previous prime is 289433051. The next prime is 289433077. The reversal of 289433069 is 960334982.

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 289433069 - 2⁸ = 289432813 is a prime.

It is a super-2 number, since 2×289433069² = 167543002861517522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289433269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887669 + ... + 887994.

It is an arithmetic number, because the mean of its divisors is an integer number (72802224).

Almost surely, 2^289433069 is an apocalyptic number.

It is an amenable number.

289433069 is a deficient number, since it is larger than the sum of its proper divisors (1775827).

289433069 is a wasteful number, since it uses less digits than its factorization.

289433069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775826.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 289433069 is about 17012.7325553539. The cubic root of 289433069 is about 661.4789828072.

The spelling of 289433069 in words is "two hundred eighty-nine million, four hundred thirty-three thousand, sixty-nine".