6657061 has 2 divisors, whose sum is σ = 6657062. Its totient is φ = 6657060.

The previous prime is 6657041. The next prime is 6657067. The reversal of 6657061 is 1607566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 2268036 = 2095^2 + 1506^2 .

It is a cyclic number.

It is not a de Polignac number, because 6657061 - 2⁹ = 6656549 is a prime.

It is a super-2 number, since 2×6657061² = 88632922315442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6657067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3328530 + 3328531.

It is an arithmetic number, because the mean of its divisors is an integer number (3328531).

Almost surely, 2^6657061 is an apocalyptic number.

It is an amenable number.

6657061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6657061 is an equidigital number, since it uses as much as digits as its factorization.

6657061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 6657061 is about 2580.1280975952. The cubic root of 6657061 is about 188.1167695431.

The spelling of 6657061 in words is "six million, six hundred fifty-seven thousand, sixty-one".