2639371 has 8 divisors (see below), whose sum is σ = 3113984. Its totient is φ = 2189160.

The previous prime is 2639353. The next prime is 2639389. The reversal of 2639371 is 1739362.

It is an interprime number because it is at equal distance from previous prime (2639353) and next prime (2639389).

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 2639371 - 2⁵ = 2639339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

2639371 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2639071) 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, 5865 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (389248).

2^2639371 is an apocalyptic number.

2639371 is a deficient number, since it is larger than the sum of its proper divisors (474613).

2639371 is a wasteful number, since it uses less digits than its factorization.

2639371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201.

The product of its digits is 6804, while the sum is 31.

The square root of 2639371 is about 1624.6141080269. The cubic root of 2639371 is about 138.1974873238.

Subtracting from 2639371 its reverse (1739362), we obtain a palindrome (900009).

The spelling of 2639371 in words is "two million, six hundred thirty-nine thousand, three hundred seventy-one".