289449901 has 16 divisors (see below), whose sum is σ = 315580608. Its totient is φ = 263894400.

The previous prime is 289449893. The next prime is 289449931. The reversal of 289449901 is 109944982.

289449901 = 1385² + 1386² + ... + 1521².

It is a cyclic number.

It is not a de Polignac number, because 289449901 - 2³ = 289449893 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 (289449931) 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 15 ways as a sum of consecutive naturals, for example, 589266 + ... + 589756.

It is an arithmetic number, because the mean of its divisors is an integer number (19723788).

Almost surely, 2^289449901 is an apocalyptic number.

It is an amenable number.

289449901 is a deficient number, since it is larger than the sum of its proper divisors (26130707).

289449901 is a wasteful number, since it uses less digits than its factorization.

289449901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 289449901 is about 17013.2272364769. The cubic root of 289449901 is about 661.4918053438.

The spelling of 289449901 in words is "two hundred eighty-nine million, four hundred forty-nine thousand, nine hundred one".