6670231 has 2 divisors, whose sum is σ = 6670232. Its totient is φ = 6670230.

The previous prime is 6670211. The next prime is 6670243. The reversal of 6670231 is 1320766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6670231 - 2⁵ = 6670199 is a prime.

It is a super-2 number, since 2×6670231² = 88983963186722, which contains 22 as substring.

6670231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6670196 and 6670205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6670201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335115 + 3335116.

It is an arithmetic number, because the mean of its divisors is an integer number (3335116).

Almost surely, 2^6670231 is an apocalyptic number.

6670231 is the 1381-st centered heptagonal number.

6670231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6670231 is an equidigital number, since it uses as much as digits as its factorization.

6670231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 6670231 is about 2582.6790354204. The cubic root of 6670231 is about 188.2407414612.

Adding to 6670231 its reverse (1320766), we get a palindrome (7990997).

The spelling of 6670231 in words is "six million, six hundred seventy thousand, two hundred thirty-one".