6672157 has 2 divisors, whose sum is σ = 6672158. Its totient is φ = 6672156.

The previous prime is 6672137. The next prime is 6672179. The reversal of 6672157 is 7512766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6421156 + 251001 = 2534^2 + 501^2 .

It is a cyclic number.

It is not a de Polignac number, because 6672157 - 2¹¹ = 6670109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6672137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3336078 + 3336079.

It is an arithmetic number, because the mean of its divisors is an integer number (3336079).

Almost surely, 2^6672157 is an apocalyptic number.

It is an amenable number.

6672157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6672157 is an equidigital number, since it uses as much as digits as its factorization.

6672157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 6672157 is about 2583.0518771407. The cubic root of 6672157 is about 188.2588576143.

The spelling of 6672157 in words is "six million, six hundred seventy-two thousand, one hundred fifty-seven".