289292893 has 8 divisors (see below), whose sum is σ = 316873080. Its totient is φ = 262886400.

The previous prime is 289292891. The next prime is 289292909. The reversal of 289292893 is 398292982.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14462809 + 274830084 = 3803^2 + 16578^2 .

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 289292893 - 2¹ = 289292891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289292893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289292891) 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, 292908 + ... + 293893.

It is an arithmetic number, because the mean of its divisors is an integer number (39609135).

Almost surely, 2^289292893 is an apocalyptic number.

It is an amenable number.

289292893 is a deficient number, since it is larger than the sum of its proper divisors (27580187).

289292893 is a wasteful number, since it uses less digits than its factorization.

289292893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586847.

The product of its digits is 1119744, while the sum is 52.

The square root of 289292893 is about 17008.6123184697. The cubic root of 289292893 is about 661.3721780903.

The spelling of 289292893 in words is "two hundred eighty-nine million, two hundred ninety-two thousand, eight hundred ninety-three".