5981647 has 8 divisors (see below), whose sum is σ = 6862752. Its totient is φ = 5107200.

The previous prime is 5981641. The next prime is 5981659. The reversal of 5981647 is 7461895.

5981647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5981647 - 2¹⁹ = 5457359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5981641) 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, 447 + ... + 3487.

It is an arithmetic number, because the mean of its divisors is an integer number (857844).

Almost surely, 2^5981647 is an apocalyptic number.

5981647 is a deficient number, since it is larger than the sum of its proper divisors (881105).

5981647 is a wasteful number, since it uses less digits than its factorization.

5981647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329.

The product of its digits is 60480, while the sum is 40.

The square root of 5981647 is about 2445.7405831363. The cubic root of 5981647 is about 181.5265944178.

It can be divided in two parts, 598 and 1647, that multiplied together give a triangular number (984906 = T₁₄₀₃).

The spelling of 5981647 in words is "five million, nine hundred eighty-one thousand, six hundred forty-seven".