2788251 has 4 divisors (see below), whose sum is σ = 3717672. Its totient is φ = 1858832.

The previous prime is 2788217. The next prime is 2788273. The reversal of 2788251 is 1528872.

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 2788251 - 2⁹ = 2787739 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2787251) 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, 464706 + ... + 464711.

It is an arithmetic number, because the mean of its divisors is an integer number (929418).

2^2788251 is an apocalyptic number.

2788251 is a deficient number, since it is larger than the sum of its proper divisors (929421).

2788251 is an equidigital number, since it uses as much as digits as its factorization.

2788251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929420.

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

The square root of 2788251 is about 1669.8056773170. The cubic root of 2788251 is about 140.7485584668.

The spelling of 2788251 in words is "two million, seven hundred eighty-eight thousand, two hundred fifty-one".