289209001 has 4 divisors (see below), whose sum is σ = 295362432. Its totient is φ = 283055572.

The previous prime is 289208993. The next prime is 289209007. The reversal of 289209001 is 100902982.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100902982 = 2 ⋅50451491.

It is a cyclic number.

It is not a de Polignac number, because 289209001 - 2³ = 289208993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289209007) 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, 3076645 + ... + 3076738.

It is an arithmetic number, because the mean of its divisors is an integer number (73840608).

Almost surely, 2^289209001 is an apocalyptic number.

It is an amenable number.

289209001 is a deficient number, since it is larger than the sum of its proper divisors (6153431).

289209001 is an equidigital number, since it uses as much as digits as its factorization.

289209001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153430.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 289209001 is about 17006.1459772636. The cubic root of 289209001 is about 661.3082415054.

It can be divided in two parts, 28 and 9209001, that added together give a palindrome (9209029).

The spelling of 289209001 in words is "two hundred eighty-nine million, two hundred nine thousand, one".