2971641 has 4 divisors (see below), whose sum is σ = 3962192. Its totient is φ = 1981092.

The previous prime is 2971607. The next prime is 2971663. The reversal of 2971641 is 1461792.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2971641 - 2¹⁴ = 2955257 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2971599 and 2971608.

It is not an unprimeable number, because it can be changed into a prime (2971541) 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, 495271 + ... + 495276.

It is an arithmetic number, because the mean of its divisors is an integer number (990548).

2^2971641 is an apocalyptic number.

It is an amenable number.

2971641 is a deficient number, since it is larger than the sum of its proper divisors (990551).

2971641 is an equidigital number, since it uses as much as digits as its factorization.

2971641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990550.

The product of its digits is 3024, while the sum is 30.

The square root of 2971641 is about 1723.8448306040. The cubic root of 2971641 is about 143.7690646422.

The spelling of 2971641 in words is "two million, nine hundred seventy-one thousand, six hundred forty-one".