2027661 has 8 divisors (see below), whose sum is σ = 2845920. Its totient is φ = 1280592.

The previous prime is 2027659. The next prime is 2027677. The reversal of 2027661 is 1667202.

It is a happy number.

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

It is not a de Polignac number, because 2027661 - 2¹ = 2027659 is a prime.

It is a super-2 number, since 2×2027661² = 8222818261842, which contains 22 as substring.

2027661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027681) 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, 17730 + ... + 17843.

It is an arithmetic number, because the mean of its divisors is an integer number (355740).

2^2027661 is an apocalyptic number.

It is an amenable number.

2027661 is a deficient number, since it is larger than the sum of its proper divisors (818259).

2027661 is a wasteful number, since it uses less digits than its factorization.

2027661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35595.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2027661 is about 1423.9596202140. The cubic root of 2027661 is about 126.5702921890.

The spelling of 2027661 in words is "two million, twenty-seven thousand, six hundred sixty-one".