289025247 has 32 divisors (see below), whose sum is σ = 449740800. Its totient is φ = 161686368.

The previous prime is 289025239. The next prime is 289025249. The reversal of 289025247 is 742520982.

It is not a de Polignac number, because 289025247 - 2³ = 289025239 is a prime.

It is a super-2 number, since 2×289025247² = 167071186806822018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289025249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 593238 + ... + 593724.

It is an arithmetic number, because the mean of its divisors is an integer number (14054400).

Almost surely, 2^289025247 is an apocalyptic number.

289025247 is a deficient number, since it is larger than the sum of its proper divisors (160715553).

289025247 is a wasteful number, since it uses less digits than its factorization.

289025247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 289025247 is about 17000.7425426068. The cubic root of 289025247 is about 661.1681539107.

The spelling of 289025247 in words is "two hundred eighty-nine million, twenty-five thousand, two hundred forty-seven".