28487007 has 6 divisors (see below), whose sum is σ = 41147912. Its totient is φ = 18991332.

The previous prime is 28486987. The next prime is 28487033. The reversal of 28487007 is 70078482.

It is not a de Polignac number, because 28487007 - 2⁷ = 28486879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1582603 + ... + 1582620.

Almost surely, 2^28487007 is an apocalyptic number.

28487007 is a deficient number, since it is larger than the sum of its proper divisors (12660905).

28487007 is a wasteful number, since it uses less digits than its factorization.

28487007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165229 (or 3165226 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 28487007 is about 5337.3220813438. The cubic root of 28487007 is about 305.4093116044.

The spelling of 28487007 in words is "twenty-eight million, four hundred eighty-seven thousand, seven".