2613989 has 8 divisors (see below), whose sum is σ = 2997888. Its totient is φ = 2232720.

The previous prime is 2613983. The next prime is 2613991. The reversal of 2613989 is 9893162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2613989 - 2²⁰ = 1565413 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613983) 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 7 ways as a sum of consecutive naturals, for example, 2504 + ... + 3390.

It is an arithmetic number, because the mean of its divisors is an integer number (374736).

2^2613989 is an apocalyptic number.

It is an amenable number.

2613989 is a deficient number, since it is larger than the sum of its proper divisors (383899).

2613989 is an equidigital number, since it uses as much as digits as its factorization.

2613989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315.

The product of its digits is 23328, while the sum is 38.

The square root of 2613989 is about 1616.7835352947. The cubic root of 2613989 is about 137.7530590458.

The spelling of 2613989 in words is "two million, six hundred thirteen thousand, nine hundred eighty-nine".