2639106 has 12 divisors (see below), whose sum is σ = 5718102. Its totient is φ = 879696.

The previous prime is 2639093. The next prime is 2639107. The reversal of 2639106 is 6019362.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 416025 = 1491^2 + 645^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2639106.

It is not an unprimeable number, because it can be changed into a prime (2639107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73291 + ... + 73326.

2^2639106 is an apocalyptic number.

2639106 is an abundant number, since it is smaller than the sum of its proper divisors (3078996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2639106 is a wasteful number, since it uses less digits than its factorization.

2639106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146625 (or 146622 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2639106 is about 1624.5325481504. The cubic root of 2639106 is about 138.1928620349.

The spelling of 2639106 in words is "two million, six hundred thirty-nine thousand, one hundred six".