2108738 has 4 divisors (see below), whose sum is σ = 3163110. Its totient is φ = 1054368.

The previous prime is 2108737. The next prime is 2108759. The reversal of 2108738 is 8378012.

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., 1841449 + 267289 = 1357^2 + 517^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2108738.

It is not an unprimeable number, because it can be changed into a prime (2108737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527183 + ... + 527186.

2^2108738 is an apocalyptic number.

2108738 is a deficient number, since it is larger than the sum of its proper divisors (1054372).

2108738 is a wasteful number, since it uses less digits than its factorization.

2108738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054371.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2108738 is about 1452.1494413455. The cubic root of 2108738 is about 128.2352850160.

The spelling of 2108738 in words is "two million, one hundred eight thousand, seven hundred thirty-eight".