289538670 has 16 divisors (see below), whose sum is σ = 694892880. Its totient is φ = 77210304.

The previous prime is 289538633. The next prime is 289538671. The reversal of 289538670 is 76835982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289538671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4825615 + ... + 4825674.

It is an arithmetic number, because the mean of its divisors is an integer number (43430805).

Almost surely, 2^289538670 is an apocalyptic number.

289538670 is an abundant number, since it is smaller than the sum of its proper divisors (405354210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289538670 is a wasteful number, since it uses less digits than its factorization.

289538670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9651299.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 289538670 is about 17015.8358595750. The cubic root of 289538670 is about 661.5594209186.

The spelling of 289538670 in words is "two hundred eighty-nine million, five hundred thirty-eight thousand, six hundred seventy".