7891365 has 16 divisors (see below), whose sum is σ = 13291200. Its totient is φ = 3987072.

The previous prime is 7891361. The next prime is 7891379. The reversal of 7891365 is 5631987.

It is not a de Polignac number, because 7891365 - 2² = 7891361 is a prime.

It is a Curzon number.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7891361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13560 + ... + 14129.

It is an arithmetic number, because the mean of its divisors is an integer number (830700).

Almost surely, 2^7891365 is an apocalyptic number.

It is an amenable number.

7891365 is a deficient number, since it is larger than the sum of its proper divisors (5399835).

7891365 is a wasteful number, since it uses less digits than its factorization.

7891365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27716.

The product of its digits is 45360, while the sum is 39.

The square root of 7891365 is about 2809.1573469637. The cubic root of 7891365 is about 199.0905793717.

It can be divided in two parts, 7891 and 365, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 7891365 in words is "seven million, eight hundred ninety-one thousand, three hundred sixty-five".