289907429 has 4 divisors (see below), whose sum is σ = 331322784. Its totient is φ = 248492076.

The previous prime is 289907417. The next prime is 289907473. The reversal of 289907429 is 924709982.

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 not a de Polignac number, because 289907429 - 2²⁰ = 288858853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289907729) 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, 20707667 + ... + 20707680.

It is an arithmetic number, because the mean of its divisors is an integer number (82830696).

Almost surely, 2^289907429 is an apocalyptic number.

It is an amenable number.

289907429 is a deficient number, since it is larger than the sum of its proper divisors (41415355).

289907429 is an equidigital number, since it uses as much as digits as its factorization.

289907429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41415354.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 289907429 is about 17026.6681708431. The cubic root of 289907429 is about 661.8401577376.

The spelling of 289907429 in words is "two hundred eighty-nine million, nine hundred seven thousand, four hundred twenty-nine".