84748289 has 4 divisors (see below), whose sum is σ = 84792324. Its totient is φ = 84704256.

The previous prime is 84748283. The next prime is 84748291. The reversal of 84748289 is 98284748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40857664 + 43890625 = 6392^2 + 6625^2 .

It is a cyclic number.

It is not a de Polignac number, because 84748289 - 2⁴ = 84748273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84748283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18992 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (21198081).

Almost surely, 2^84748289 is an apocalyptic number.

It is an amenable number.

84748289 is a deficient number, since it is larger than the sum of its proper divisors (44035).

84748289 is a wasteful number, since it uses less digits than its factorization.

84748289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44034.

The product of its digits is 1032192, while the sum is 50.

The square root of 84748289 is about 9205.8833905280. The cubic root of 84748289 is about 439.2485261765.

The spelling of 84748289 in words is "eighty-four million, seven hundred forty-eight thousand, two hundred eighty-nine".