2972865 has 32 divisors (see below), whose sum is σ = 5677056. Its totient is φ = 1298880.

The previous prime is 2972863. The next prime is 2972881. The reversal of 2972865 is 5682792.

It is a happy number.

2972865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2972865 - 2¹ = 2972863 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 9³ + 7⁷ + 2²¹ + 8² + 6⁶ + 5⁴ .

It is not an unprimeable number, because it can be changed into a prime (2972863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1800 + ... + 3030.

It is an arithmetic number, because the mean of its divisors is an integer number (177408).

2^2972865 is an apocalyptic number.

It is an amenable number.

2972865 is a deficient number, since it is larger than the sum of its proper divisors (2704191).

2972865 is a wasteful number, since it uses less digits than its factorization.

2972865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269.

The product of its digits is 60480, while the sum is 39.

The square root of 2972865 is about 1724.1998144067. The cubic root of 2972865 is about 143.7888011200.

The spelling of 2972865 in words is "two million, nine hundred seventy-two thousand, eight hundred sixty-five".