7066831 has 4 divisors (see below), whose sum is σ = 7073352. Its totient is φ = 7060312.

The previous prime is 7066799. The next prime is 7066837. The reversal of 7066831 is 1386607.

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.

It is a cyclic number.

It is not a de Polignac number, because 7066831 - 2⁵ = 7066799 is a prime.

It is a super-2 number, since 2×7066831² = 99880200765122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7066793 and 7066802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7066837) 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, 1201 + ... + 3946.

It is an arithmetic number, because the mean of its divisors is an integer number (1768338).

Almost surely, 2^7066831 is an apocalyptic number.

7066831 is a deficient number, since it is larger than the sum of its proper divisors (6521).

7066831 is a wasteful number, since it uses less digits than its factorization.

7066831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 7066831 is about 2658.3511807133. The cubic root of 7066831 is about 191.8999677851.

The spelling of 7066831 in words is "seven million, sixty-six thousand, eight hundred thirty-one".