2878469 has 6 divisors (see below), whose sum is σ = 3164070. Its totient is φ = 2616680.

The previous prime is 2878451. The next prime is 2878537. The reversal of 2878469 is 9648782.

2878469 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 only one way, i.e., 2044900 + 833569 = 1430^2 + 913^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2878469 is a prime.

It is a super-2 number, since 2×2878469² = 16571167567922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878409) 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 in 5 ways as a sum of consecutive naturals, for example, 11774 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (527345).

2^2878469 is an apocalyptic number.

It is an amenable number.

2878469 is a deficient number, since it is larger than the sum of its proper divisors (285601).

2878469 is a wasteful number, since it uses less digits than its factorization.

2878469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23811 (or 23800 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 2878469 is about 1696.6051396834. The cubic root of 2878469 is about 142.2505165829.

The spelling of 2878469 in words is "two million, eight hundred seventy-eight thousand, four hundred sixty-nine".