28041237 has 24 divisors (see below), whose sum is σ = 46949760. Its totient is φ = 15795360.

The previous prime is 28041217. The next prime is 28041257. The reversal of 28041237 is 73214082.

It is an interprime number because it is at equal distance from previous prime (28041217) and next prime (28041257).

It is not a de Polignac number, because 28041237 - 2⁸ = 28040981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28041237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28041217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339 + ... + 7607.

It is an arithmetic number, because the mean of its divisors is an integer number (1956240).

Almost surely, 2^28041237 is an apocalyptic number.

It is an amenable number.

28041237 is a deficient number, since it is larger than the sum of its proper divisors (18908523).

28041237 is a wasteful number, since it uses less digits than its factorization.

28041237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6353 (or 6350 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 28041237 is about 5295.3977187743. The cubic root of 28041237 is about 303.8078952795.

The spelling of 28041237 in words is "twenty-eight million, forty-one thousand, two hundred thirty-seven".