289901431 has 8 divisors (see below), whose sum is σ = 293396480. Its totient is φ = 286419672.

The previous prime is 289901389. The next prime is 289901441. The reversal of 289901431 is 134109982.

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 289901431 - 2⁷ = 289901303 is a prime.

It is a super-2 number, since 2×289901431² = 168085679391695522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289901441) 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, 44650 + ... + 50728.

It is an arithmetic number, because the mean of its divisors is an integer number (36674560).

Almost surely, 2^289901431 is an apocalyptic number.

289901431 is a deficient number, since it is larger than the sum of its proper divisors (3495049).

289901431 is a wasteful number, since it uses less digits than its factorization.

289901431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 289901431 is about 17026.4920344738. The cubic root of 289901431 is about 661.8355933557.

The spelling of 289901431 in words is "two hundred eighty-nine million, nine hundred one thousand, four hundred thirty-one".