289036725 has 24 divisors (see below), whose sum is σ = 479150880. Its totient is φ = 153741120.

The previous prime is 289036691. The next prime is 289036729. The reversal of 289036725 is 527630982.

It is not a de Polignac number, because 289036725 - 2⁹ = 289036213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289036729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24222 + ... + 34128.

It is an arithmetic number, because the mean of its divisors is an integer number (19964620).

Almost surely, 2^289036725 is an apocalyptic number.

289036725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289036725 is a deficient number, since it is larger than the sum of its proper divisors (190114155).

289036725 is a wasteful number, since it uses less digits than its factorization.

289036725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10309 (or 10304 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 289036725 is about 17001.0801127458. The cubic root of 289036725 is about 661.1769060730.

The spelling of 289036725 in words is "two hundred eighty-nine million, thirty-six thousand, seven hundred twenty-five".