2666697 has 8 divisors (see below), whose sum is σ = 3878880. Its totient is φ = 1616160.

The previous prime is 2666693. The next prime is 2666717. The reversal of 2666697 is 7966662.

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

It is not a de Polignac number, because 2666697 - 2² = 2666693 is a prime.

It is a super-2 number, since 2×2666697² = 14222545779618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666693) 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, 40372 + ... + 40437.

It is an arithmetic number, because the mean of its divisors is an integer number (484860).

2^2666697 is an apocalyptic number.

It is an amenable number.

2666697 is a deficient number, since it is larger than the sum of its proper divisors (1212183).

2666697 is a wasteful number, since it uses less digits than its factorization.

2666697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80823.

The product of its digits is 163296, while the sum is 42.

The square root of 2666697 is about 1633.0024494776. The cubic root of 2666697 is about 138.6727806671.

The spelling of 2666697 in words is "two million, six hundred sixty-six thousand, six hundred ninety-seven".