7061891 has 8 divisors (see below), whose sum is σ = 7291200. Its totient is φ = 6835968.

The previous prime is 7061869. The next prime is 7061917. The reversal of 7061891 is 1981607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7061891 - 2⁶ = 7061827 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (7061861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3785 + ... + 5333.

It is an arithmetic number, because the mean of its divisors is an integer number (911400).

Almost surely, 2^7061891 is an apocalyptic number.

7061891 is a deficient number, since it is larger than the sum of its proper divisors (229309).

7061891 is a wasteful number, since it uses less digits than its factorization.

7061891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 7061891 is about 2657.4218709117. The cubic root of 7061891 is about 191.8552420884.

The spelling of 7061891 in words is "seven million, sixty-one thousand, eight hundred ninety-one".