289922087 has 8 divisors (see below), whose sum is σ = 356827296. Its totient is φ = 229388832.

The previous prime is 289922053. The next prime is 289922093. The reversal of 289922087 is 780229982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289922087 - 2⁶ = 289922023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289922027) 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, 1592888 + ... + 1593069.

It is an arithmetic number, because the mean of its divisors is an integer number (44603412).

Almost surely, 2^289922087 is an apocalyptic number.

289922087 is a deficient number, since it is larger than the sum of its proper divisors (66905209).

289922087 is a wasteful number, since it uses less digits than its factorization.

289922087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185977.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 289922087 is about 17027.0986078075. The cubic root of 289922087 is about 661.8513119758.

The spelling of 289922087 in words is "two hundred eighty-nine million, nine hundred twenty-two thousand, eighty-seven".