2371641 has 4 divisors (see below), whose sum is σ = 3162192. Its totient is φ = 1581092.

The previous prime is 2371639. The next prime is 2371651. The reversal of 2371641 is 1461732.

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 a cyclic number.

It is not a de Polignac number, because 2371641 - 2¹ = 2371639 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2371631) 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, 395271 + ... + 395276.

It is an arithmetic number, because the mean of its divisors is an integer number (790548).

2^2371641 is an apocalyptic number.

It is an amenable number.

2371641 is a deficient number, since it is larger than the sum of its proper divisors (790551).

2371641 is an equidigital number, since it uses as much as digits as its factorization.

2371641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790550.

The product of its digits is 1008, while the sum is 24.

The square root of 2371641 is about 1540.0133116308. The cubic root of 2371641 is about 133.3571533832.

Subtracting from 2371641 its reverse (1461732), we obtain a palindrome (909909).

The spelling of 2371641 in words is "two million, three hundred seventy-one thousand, six hundred forty-one".