2061647 has 8 divisors (see below), whose sum is σ = 2401056. Its totient is φ = 1733472.

The previous prime is 2061629. The next prime is 2061649. The reversal of 2061647 is 7461602.

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 2061647 - 2⁶ = 2061583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061649) 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, 2408 + ... + 3149.

It is an arithmetic number, because the mean of its divisors is an integer number (300132).

2^2061647 is an apocalyptic number.

2061647 is a deficient number, since it is larger than the sum of its proper divisors (339409).

2061647 is an equidigital number, since it uses as much as digits as its factorization.

2061647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2061647 is about 1435.8436544415. The cubic root of 2061647 is about 127.2735336529.

The spelling of 2061647 in words is "two million, sixty-one thousand, six hundred forty-seven".