2666901 has 4 divisors (see below), whose sum is σ = 3555872. Its totient is φ = 1777932.

The previous prime is 2666891. The next prime is 2666929. The reversal of 2666901 is 1096662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2666901 - 2¹⁴ = 2650517 is a prime.

It is a super-2 number, since 2×2666901² = 14224721887602, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444481 + ... + 444486.

It is an arithmetic number, because the mean of its divisors is an integer number (888968).

2^2666901 is an apocalyptic number.

It is an amenable number.

2666901 is a deficient number, since it is larger than the sum of its proper divisors (888971).

2666901 is an equidigital number, since it uses as much as digits as its factorization.

2666901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888970.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 2666901 is about 1633.0649099163. The cubic root of 2666901 is about 138.6763166926.

The spelling of 2666901 in words is "two million, six hundred sixty-six thousand, nine hundred one".