2971487 has 4 divisors (see below), whose sum is σ = 2984160. Its totient is φ = 2958816.

The previous prime is 2971471. The next prime is 2971489. The reversal of 2971487 is 7841792.

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 2971487 - 2⁴ = 2971471 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 2971487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971489) 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, 5978 + ... + 6455.

It is an arithmetic number, because the mean of its divisors is an integer number (746040).

2^2971487 is an apocalyptic number.

2971487 is a deficient number, since it is larger than the sum of its proper divisors (12673).

2971487 is a wasteful number, since it uses less digits than its factorization.

2971487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12672.

The product of its digits is 28224, while the sum is 38.

The square root of 2971487 is about 1723.8001624318. The cubic root of 2971487 is about 143.7665810741.

The spelling of 2971487 in words is "two million, nine hundred seventy-one thousand, four hundred eighty-seven".