2916661 has 4 divisors (see below), whose sum is σ = 3181824. Its totient is φ = 2651500.

The previous prime is 2916649. The next prime is 2916677. The reversal of 2916661 is 1666192.

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 a cyclic number.

It is not a de Polignac number, because 2916661 - 2⁵ = 2916629 is a prime.

It is a super-2 number, since 2×2916661² = 17013822777842, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2916611) 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, 132565 + ... + 132586.

It is an arithmetic number, because the mean of its divisors is an integer number (795456).

2^2916661 is an apocalyptic number.

It is an amenable number.

2916661 is a deficient number, since it is larger than the sum of its proper divisors (265163).

2916661 is a wasteful number, since it uses less digits than its factorization.

2916661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265162.

The product of its digits is 3888, while the sum is 31.

The square root of 2916661 is about 1707.8234686290. The cubic root of 2916661 is about 142.8768888420.

The spelling of 2916661 in words is "two million, nine hundred sixteen thousand, six hundred sixty-one".