289172404 has 6 divisors (see below), whose sum is σ = 506051714. Its totient is φ = 144586200.

The previous prime is 289172383. The next prime is 289172417. The reversal of 289172404 is 404271982.

It can be written as a sum of positive squares in only one way, i.e., 282912400 + 6260004 = 16820^2 + 2502^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36146547 + ... + 36146554.

Almost surely, 2^289172404 is an apocalyptic number.

It is an amenable number.

289172404 is a deficient number, since it is larger than the sum of its proper divisors (216879310).

289172404 is a wasteful number, since it uses less digits than its factorization.

289172404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72293105 (or 72293103 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 289172404 is about 17005.0699498708. The cubic root of 289172404 is about 661.2803459713.

The spelling of 289172404 in words is "two hundred eighty-nine million, one hundred seventy-two thousand, four hundred four".