289288995 has 16 divisors (see below), whose sum is σ = 472711680. Its totient is φ = 151004384.

The previous prime is 289288991. The next prime is 289289029. The reversal of 289288995 is 599882982.

It is a cyclic number.

It is not a de Polignac number, because 289288995 - 2² = 289288991 is a prime.

It is a super-2 number, since 2×289288995² = 167376245256220050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289288991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204465 + ... + 205874.

It is an arithmetic number, because the mean of its divisors is an integer number (29544480).

Almost surely, 2^289288995 is an apocalyptic number.

289288995 is a deficient number, since it is larger than the sum of its proper divisors (183422685).

289288995 is a wasteful number, since it uses less digits than its factorization.

289288995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410394.

The product of its digits is 7464960, while the sum is 60.

The square root of 289288995 is about 17008.4977290765. The cubic root of 289288995 is about 661.3692075826.

The spelling of 289288995 in words is "two hundred eighty-nine million, two hundred eighty-eight thousand, nine hundred ninety-five".