289409629 has 4 divisors (see below), whose sum is σ = 292896576. Its totient is φ = 285922684.

The previous prime is 289409599. The next prime is 289409663. The reversal of 289409629 is 926904982.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-289409629 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289409689) 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, 1743349 + ... + 1743514.

It is an arithmetic number, because the mean of its divisors is an integer number (73224144).

Almost surely, 2^289409629 is an apocalyptic number.

It is an amenable number.

289409629 is a deficient number, since it is larger than the sum of its proper divisors (3486947).

289409629 is an equidigital number, since it uses as much as digits as its factorization.

289409629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486946.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 289409629 is about 17012.0436456059. The cubic root of 289409629 is about 661.4611254997.

The spelling of 289409629 in words is "two hundred eighty-nine million, four hundred nine thousand, six hundred twenty-nine".