289472503 has 12 divisors (see below), whose sum is σ = 303517368. Its totient is φ = 276053360.

The previous prime is 289472501. The next prime is 289472507. The reversal of 289472503 is 305274982.

It is not a de Polignac number, because 289472503 - 2¹ = 289472501 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 (289472501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243276 + ... + 244462.

It is an arithmetic number, because the mean of its divisors is an integer number (25293114).

Almost surely, 2^289472503 is an apocalyptic number.

289472503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

289472503 is a deficient number, since it is larger than the sum of its proper divisors (14044865).

289472503 is a wasteful number, since it uses less digits than its factorization.

289472503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 289472503 is about 17013.8914713830. The cubic root of 289472503 is about 661.5090226568.

The spelling of 289472503 in words is "two hundred eighty-nine million, four hundred seventy-two thousand, five hundred three".