28882251 has 14 divisors (see below), whose sum is σ = 43304660. Its totient is φ = 19254348.

The previous prime is 28882247. The next prime is 28882267. The reversal of 28882251 is 15228882.

It is a happy number.

It is not a de Polignac number, because 28882251 - 2² = 28882247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28882151) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 19081 + ... + 20538.

It is an arithmetic number, because the mean of its divisors is an integer number (3093190).

Almost surely, 2^28882251 is an apocalyptic number.

28882251 is a deficient number, since it is larger than the sum of its proper divisors (14422409).

28882251 is an frugal number, since it uses more digits than its factorization.

28882251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39637 (or 39622 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 28882251 is about 5374.2209668007. The cubic root of 28882251 is about 306.8152998517.

The spelling of 28882251 in words is "twenty-eight million, eight hundred eighty-two thousand, two hundred fifty-one".