2658667 has 8 divisors (see below), whose sum is σ = 2914560. Its totient is φ = 2405160.

The previous prime is 2658661. The next prime is 2658671. The reversal of 2658667 is 7668562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2658667 - 2³ = 2658659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2658661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2434 + ... + 3352.

It is an arithmetic number, because the mean of its divisors is an integer number (364320).

2^2658667 is an apocalyptic number.

2658667 is a deficient number, since it is larger than the sum of its proper divisors (255893).

2658667 is a wasteful number, since it uses less digits than its factorization.

2658667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its digits is 120960, while the sum is 40.

The square root of 2658667 is about 1630.5419344500. The cubic root of 2658667 is about 138.5334495010.

The spelling of 2658667 in words is "two million, six hundred fifty-eight thousand, six hundred sixty-seven".