7067881 has 2 divisors, whose sum is σ = 7067882. Its totient is φ = 7067880.

The previous prime is 7067873. The next prime is 7067899. The reversal of 7067881 is 1887607.

It is a happy number.

7067881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5480281 + 1587600 = 2341^2 + 1260^2 .

It is an emirp because it is prime and its reverse (1887607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7067881 - 2³ = 7067873 is a prime.

It is a super-2 number, since 2×7067881² = 99909883660322, which contains 22 as substring.

7067881 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7067881.

It is not a weakly prime, because it can be changed into another prime (7067861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3533940 + 3533941.

It is an arithmetic number, because the mean of its divisors is an integer number (3533941).

Almost surely, 2^7067881 is an apocalyptic number.

It is an amenable number.

7067881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7067881 is an equidigital number, since it uses as much as digits as its factorization.

7067881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 7067881 is about 2658.5486642151. The cubic root of 7067881 is about 191.9094715729.

The spelling of 7067881 in words is "seven million, sixty-seven thousand, eight hundred eighty-one".