2646651 has 8 divisors (see below), whose sum is σ = 4033024. Its totient is φ = 1512360.

The previous prime is 2646649. The next prime is 2646653. The reversal of 2646651 is 1566462.

2646651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2646649) and next prime (2646653).

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

It is not a de Polignac number, because 2646651 - 2¹ = 2646649 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2646653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62995 + ... + 63036.

It is an arithmetic number, because the mean of its divisors is an integer number (504128).

2^2646651 is an apocalyptic number.

2646651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2646651 is a deficient number, since it is larger than the sum of its proper divisors (1386373).

2646651 is a wasteful number, since it uses less digits than its factorization.

2646651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126041.

The product of its digits is 8640, while the sum is 30.

The square root of 2646651 is about 1626.8530972402. The cubic root of 2646651 is about 138.3244309685.

The spelling of 2646651 in words is "two million, six hundred forty-six thousand, six hundred fifty-one".