2646106 has 4 divisors (see below), whose sum is σ = 3969162. Its totient is φ = 1323052.

The previous prime is 2646089. The next prime is 2646107. The reversal of 2646106 is 6016462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2387025 + 259081 = 1545^2 + 509^2 .

It is not an unprimeable number, because it can be changed into a prime (2646107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661525 + ... + 661528.

2^2646106 is an apocalyptic number.

2646106 is the 870-th centered heptagonal number.

2646106 is a deficient number, since it is larger than the sum of its proper divisors (1323056).

2646106 is a wasteful number, since it uses less digits than its factorization.

2646106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323055.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2646106 is about 1626.6855873217. The cubic root of 2646106 is about 138.3149356995.

The spelling of 2646106 in words is "two million, six hundred forty-six thousand, one hundred six".