2607391 has 4 divisors (see below), whose sum is σ = 2668072. Its totient is φ = 2546712.

The previous prime is 2607383. The next prime is 2607403. The reversal of 2607391 is 1937062.

2607391 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2607391 - 2³ = 2607383 is a prime.

It is a Duffinian number.

2607391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2607301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30276 + ... + 30361.

It is an arithmetic number, because the mean of its divisors is an integer number (667018).

2^2607391 is an apocalyptic number.

2607391 is a deficient number, since it is larger than the sum of its proper divisors (60681).

2607391 is an equidigital number, since it uses as much as digits as its factorization.

2607391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60680.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2607391 is about 1614.7417750216. The cubic root of 2607391 is about 137.6370600274.

The spelling of 2607391 in words is "two million, six hundred seven thousand, three hundred ninety-one".