7000891 has 4 divisors (see below), whose sum is σ = 7006192. Its totient is φ = 6995592.

The previous prime is 7000849. The next prime is 7000913. The reversal of 7000891 is 1980007.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1980007 = 17 ⋅116471.

It is a cyclic number.

It is not a de Polignac number, because 7000891 - 2¹⁵ = 6968123 is a prime.

It is a Duffinian number.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (7000811) 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, 1105 + ... + 3901.

It is an arithmetic number, because the mean of its divisors is an integer number (1751548).

Almost surely, 2^7000891 is an apocalyptic number.

7000891 is a deficient number, since it is larger than the sum of its proper divisors (5301).

7000891 is a wasteful number, since it uses less digits than its factorization.

7000891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 7000891 is about 2645.9196888795. The cubic root of 7000891 is about 191.3012342266.

Adding to 7000891 its reverse (1980007), we get a palindrome (8980898).

The spelling of 7000891 in words is "seven million, eight hundred ninety-one", and thus it is an aban number.