2800427 has 16 divisors (see below), whose sum is σ = 3436992. Its totient is φ = 2227200.

The previous prime is 2800403. The next prime is 2800439. The reversal of 2800427 is 7240082.

It is a cyclic number.

It is not a de Polignac number, because 2800427 - 2¹⁴ = 2784043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2800627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11903 + ... + 12135.

It is an arithmetic number, because the mean of its divisors is an integer number (214812).

2^2800427 is an apocalyptic number.

2800427 is a deficient number, since it is larger than the sum of its proper divisors (636565).

2800427 is a wasteful number, since it uses less digits than its factorization.

2800427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2800427 is about 1673.4476388582. The cubic root of 2800427 is about 140.9531390308.

The spelling of 2800427 in words is "two million, eight hundred thousand, four hundred twenty-seven".