2987247 has 8 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 1987160.

The previous prime is 2987209. The next prime is 2987251. The reversal of 2987247 is 7427892.

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

It is a cyclic number.

It is not a de Polignac number, because 2987247 - 2¹⁰ = 2986223 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 9² + 8³ + 7⁵ + 2²¹ + 4⁷ + 7⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987207) 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, 1222 + ... + 2732.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

2^2987247 is an apocalyptic number.

2987247 is a deficient number, since it is larger than the sum of its proper divisors (1004433).

2987247 is a wasteful number, since it uses less digits than its factorization.

2987247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173.

The product of its digits is 56448, while the sum is 39.

The square root of 2987247 is about 1728.3654127528. The cubic root of 2987247 is about 144.0202999931.

The spelling of 2987247 in words is "two million, nine hundred eighty-seven thousand, two hundred forty-seven".