2878407 has 36 divisors (see below), whose sum is σ = 4961736. Its totient is φ = 1602720.

The previous prime is 2878397. The next prime is 2878409. The reversal of 2878407 is 7048782.

It is not a de Polignac number, because 2878407 - 2⁴ = 2878391 is a prime.

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 polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26848 + ... + 26954.

It is an arithmetic number, because the mean of its divisors is an integer number (137826).

2^2878407 is an apocalyptic number.

2878407 is a deficient number, since it is larger than the sum of its proper divisors (2083329).

2878407 is a wasteful number, since it uses less digits than its factorization.

2878407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 2878407 is about 1696.5868678025. The cubic root of 2878407 is about 142.2494952535.

The spelling of 2878407 in words is "two million, eight hundred seventy-eight thousand, four hundred seven".