2660771 has 8 divisors (see below), whose sum is σ = 2728704. Its totient is φ = 2593800.

The previous prime is 2660767. The next prime is 2660773. The reversal of 2660771 is 1770662.

2660771 = 69² + 70² + ... + 202².

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 2660771 - 2² = 2660767 is a prime.

It is a super-4 number, since 4×2660771⁴ (a number of 27 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660773) 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, 9986 + ... + 10248.

It is an arithmetic number, because the mean of its divisors is an integer number (341088).

2^2660771 is an apocalyptic number.

2660771 is a deficient number, since it is larger than the sum of its proper divisors (67933).

2660771 is a wasteful number, since it uses less digits than its factorization.

2660771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 2660771 is about 1631.1869911203. The cubic root of 2660771 is about 138.5699837897.

The spelling of 2660771 in words is "two million, six hundred sixty thousand, seven hundred seventy-one".