289017725 has 12 divisors (see below), whose sum is σ = 358828596. Its totient is φ = 230926080.

The previous prime is 289017713. The next prime is 289017737. The reversal of 289017725 is 527710982.

It is an interprime number because it is at equal distance from previous prime (289017713) and next prime (289017737).

It can be written as a sum of positive squares in 6 ways, for example, as 19598329 + 269419396 = 4427^2 + 16414^2 .

It is not a de Polignac number, because 289017725 - 2⁴ = 289017709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14549 + ... + 28101.

It is an arithmetic number, because the mean of its divisors is an integer number (29902383).

Almost surely, 2^289017725 is an apocalyptic number.

289017725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289017725 is a deficient number, since it is larger than the sum of its proper divisors (69810871).

289017725 is a wasteful number, since it uses less digits than its factorization.

289017725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14416 (or 14411 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 289017725 is about 17000.5213155362. The cubic root of 289017725 is about 661.1624181373.

The spelling of 289017725 in words is "two hundred eighty-nine million, seventeen thousand, seven hundred twenty-five".