28371051 has 6 divisors (see below), whose sum is σ = 40980420. Its totient is φ = 18914028.

The previous prime is 28371037. The next prime is 28371053. The reversal of 28371051 is 15017382.

It is not a de Polignac number, because 28371051 - 2⁶ = 28370987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28371053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1576161 + ... + 1576178.

It is an arithmetic number, because the mean of its divisors is an integer number (6830070).

Almost surely, 2^28371051 is an apocalyptic number.

28371051 is a deficient number, since it is larger than the sum of its proper divisors (12609369).

28371051 is a wasteful number, since it uses less digits than its factorization.

28371051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152345 (or 3152342 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 28371051 is about 5326.4482537616. The cubic root of 28371051 is about 304.9943598348.

The spelling of 28371051 in words is "twenty-eight million, three hundred seventy-one thousand, fifty-one".