2795978 has 4 divisors (see below), whose sum is σ = 4193970. Its totient is φ = 1397988.

The previous prime is 2795971. The next prime is 2795981. The reversal of 2795978 is 8795972.

2795978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 + 954529 = 1357^2 + 977^2 .

It is not an unprimeable number, because it can be changed into a prime (2795971) 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 as a sum of consecutive naturals, namely, 698993 + ... + 698996.

2^2795978 is an apocalyptic number.

2795978 is a deficient number, since it is larger than the sum of its proper divisors (1397992).

2795978 is a wasteful number, since it uses less digits than its factorization.

2795978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397991.

The product of its digits is 317520, while the sum is 47.

The square root of 2795978 is about 1672.1178188154. The cubic root of 2795978 is about 140.8784560274.

It can be divided in two parts, 2795 and 978, that added together give a palindrome (3773).

The spelling of 2795978 in words is "two million, seven hundred ninety-five thousand, nine hundred seventy-eight".