28611249 has 16 divisors (see below), whose sum is σ = 39340032. Its totient is φ = 18482688.

The previous prime is 28611229. The next prime is 28611251. The reversal of 28611249 is 94211682.

It is not a de Polignac number, because 28611249 - 2⁸ = 28610993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28611229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42177 + ... + 42849.

It is an arithmetic number, because the mean of its divisors is an integer number (2458752).

Almost surely, 2^28611249 is an apocalyptic number.

It is an amenable number.

28611249 is a deficient number, since it is larger than the sum of its proper divisors (10728783).

28611249 is a wasteful number, since it uses less digits than its factorization.

28611249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096.

The product of its digits is 6912, while the sum is 33.

The square root of 28611249 is about 5348.9484013215. The cubic root of 28611249 is about 305.8526673368.

The spelling of 28611249 in words is "twenty-eight million, six hundred eleven thousand, two hundred forty-nine".