2666929 has 2 divisors, whose sum is σ = 2666930. Its totient is φ = 2666928.

The previous prime is 2666891. The next prime is 2666947. The reversal of 2666929 is 9296662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2560000 + 106929 = 1600^2 + 327^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666929 - 2¹⁵ = 2634161 is a prime.

It is a super-2 number, since 2×2666929² = 14225020582082, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2666891 and 2666900.

It is not a weakly prime, because it can be changed into another prime (2666969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333464 + 1333465.

It is an arithmetic number, because the mean of its divisors is an integer number (1333465).

2^2666929 is an apocalyptic number.

It is an amenable number.

2666929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666929 is an equidigital number, since it uses as much as digits as its factorization.

2666929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 2666929 is about 1633.0734827313. The cubic root of 2666929 is about 138.6768020154.

The spelling of 2666929 in words is "two million, six hundred sixty-six thousand, nine hundred twenty-nine".