2278851 has 4 divisors (see below), whose sum is σ = 3038472. Its totient is φ = 1519232.

The previous prime is 2278847. The next prime is 2278877. The reversal of 2278851 is 1588722.

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 2278851 - 2² = 2278847 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2278811) 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, 379806 + ... + 379811.

It is an arithmetic number, because the mean of its divisors is an integer number (759618).

2^2278851 is an apocalyptic number.

2278851 is a deficient number, since it is larger than the sum of its proper divisors (759621).

2278851 is an equidigital number, since it uses as much as digits as its factorization.

2278851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759620.

The product of its digits is 8960, while the sum is 33.

The square root of 2278851 is about 1509.5863671880. The cubic root of 2278851 is about 131.5947742618.

The spelling of 2278851 in words is "two million, two hundred seventy-eight thousand, eight hundred fifty-one".