49831289 has 8 divisors (see below), whose sum is σ = 50923080. Its totient is φ = 48745216.

The previous prime is 49831283. The next prime is 49831303. The reversal of 49831289 is 98213894.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19669225 + 30162064 = 4435^2 + 5492^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49831289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49831283) 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, 19409 + ... + 21825.

It is an arithmetic number, because the mean of its divisors is an integer number (6365385).

Almost surely, 2^49831289 is an apocalyptic number.

It is an amenable number.

49831289 is a deficient number, since it is larger than the sum of its proper divisors (1091791).

49831289 is a wasteful number, since it uses less digits than its factorization.

49831289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859.

The product of its digits is 124416, while the sum is 44.

The square root of 49831289 is about 7059.1280623034. The cubic root of 49831289 is about 367.9883251849.

The spelling of 49831289 in words is "forty-nine million, eight hundred thirty-one thousand, two hundred eighty-nine".