7960891 has 4 divisors (see below), whose sum is σ = 8146072. Its totient is φ = 7775712.

The previous prime is 7960853. The next prime is 7960903. The reversal of 7960891 is 1980697.

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 7960891 - 2⁷ = 7960763 is a prime.

It is a Duffinian number.

7960891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7960801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92526 + ... + 92611.

It is an arithmetic number, because the mean of its divisors is an integer number (2036518).

Almost surely, 2^7960891 is an apocalyptic number.

7960891 is a deficient number, since it is larger than the sum of its proper divisors (185181).

7960891 is a wasteful number, since it uses less digits than its factorization.

7960891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185180.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 7960891 is about 2821.5050948031. The cubic root of 7960891 is about 199.6735591384.

The spelling of 7960891 in words is "seven million, nine hundred sixty thousand, eight hundred ninety-one".