2639375 has 20 divisors (see below), whose sum is σ = 3411408. Its totient is φ = 2040000.

The previous prime is 2639353. The next prime is 2639389. The reversal of 2639375 is 5739362.

It is a de Polignac number, because none of the positive numbers 2^k-2639375 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25574 + ... + 25676.

2^2639375 is an apocalyptic number.

2639375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2639375 is a deficient number, since it is larger than the sum of its proper divisors (772033).

2639375 is an equidigital number, since it uses as much as digits as its factorization.

2639375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 149 counting only the distinct ones).

The product of its digits is 34020, while the sum is 35.

The square root of 2639375 is about 1624.6153390880. The cubic root of 2639375 is about 138.1975571371.

The spelling of 2639375 in words is "two million, six hundred thirty-nine thousand, three hundred seventy-five".