2878427 has 4 divisors (see below), whose sum is σ = 3003600. Its totient is φ = 2753256.

The previous prime is 2878409. The next prime is 2878429. The reversal of 2878427 is 7248782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2878427 - 2¹² = 2874331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62552 + ... + 62597.

It is an arithmetic number, because the mean of its divisors is an integer number (750900).

2^2878427 is an apocalyptic number.

2878427 is a deficient number, since it is larger than the sum of its proper divisors (125173).

2878427 is a wasteful number, since it uses less digits than its factorization.

2878427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125172.

The product of its digits is 50176, while the sum is 38.

The square root of 2878427 is about 1696.5927619791. The cubic root of 2878427 is about 142.2498247162.

The spelling of 2878427 in words is "two million, eight hundred seventy-eight thousand, four hundred twenty-seven".