7891395 has 16 divisors (see below), whose sum is σ = 12703392. Its totient is φ = 4183040.

The previous prime is 7891381. The next prime is 7891421. The reversal of 7891395 is 5931987.

It is a happy number.

7891395 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7891395 - 2⁴ = 7891379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075 + ... + 4115.

It is an arithmetic number, because the mean of its divisors is an integer number (793962).

Almost surely, 2^7891395 is an apocalyptic number.

7891395 is a deficient number, since it is larger than the sum of its proper divisors (4811997).

7891395 is a wasteful number, since it uses less digits than its factorization.

7891395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222.

The product of its digits is 68040, while the sum is 42.

The square root of 7891395 is about 2809.1626866381. The cubic root of 7891395 is about 199.0908316605.

The spelling of 7891395 in words is "seven million, eight hundred ninety-one thousand, three hundred ninety-five".