2981347 has 4 divisors (see below), whose sum is σ = 3138280. Its totient is φ = 2824416.

The previous prime is 2981339. The next prime is 2981357. The reversal of 2981347 is 7431892.

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

It is a cyclic number.

It is not a de Polignac number, because 2981347 - 2³ = 2981339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2981357) 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, 78438 + ... + 78475.

It is an arithmetic number, because the mean of its divisors is an integer number (784570).

2^2981347 is an apocalyptic number.

2981347 is a deficient number, since it is larger than the sum of its proper divisors (156933).

2981347 is a wasteful number, since it uses less digits than its factorization.

2981347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156932.

The product of its digits is 12096, while the sum is 34.

The square root of 2981347 is about 1726.6577541598. The cubic root of 2981347 is about 143.9254211296.

The spelling of 2981347 in words is "two million, nine hundred eighty-one thousand, three hundred forty-seven".