2664547 has 2 divisors, whose sum is σ = 2664548. Its totient is φ = 2664546.

The previous prime is 2664539. The next prime is 2664551. The reversal of 2664547 is 7454662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2664547 - 2³ = 2664539 is a prime.

It is a super-3 number, since 3×2664547³ = 56753338025333985969, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2664517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332273 + 1332274.

It is an arithmetic number, because the mean of its divisors is an integer number (1332274).

2^2664547 is an apocalyptic number.

2664547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664547 is an equidigital number, since it uses as much as digits as its factorization.

2664547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 2664547 is about 1632.3440201134. The cubic root of 2664547 is about 138.6355027611.

The spelling of 2664547 in words is "two million, six hundred sixty-four thousand, five hundred forty-seven".