2978465 has 12 divisors (see below), whose sum is σ = 4158036. Its totient is φ = 2042208.

The previous prime is 2978453. The next prime is 2978483. The reversal of 2978465 is 5648792.

2978465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 2458624 = 721^2 + 1568^2 .

It is not a de Polignac number, because 2978465 - 2⁶ = 2978401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5834 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (346503).

2^2978465 is an apocalyptic number.

It is an amenable number.

2978465 is a deficient number, since it is larger than the sum of its proper divisors (1179571).

2978465 is a wasteful number, since it uses less digits than its factorization.

2978465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12176 (or 12169 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 2978465 is about 1725.8229920823. The cubic root of 2978465 is about 143.8790297062.

It can be divided in two parts, 2978 and 465, that added together give a palindrome (3443).

The spelling of 2978465 in words is "two million, nine hundred seventy-eight thousand, four hundred sixty-five".