28574037 has 6 divisors (see below), whose sum is σ = 41273622. Its totient is φ = 19049352.

The previous prime is 28574017. The next prime is 28574041. The reversal of 28574037 is 73047582.

It can be written as a sum of positive squares in only one way, i.e., 23126481 + 5447556 = 4809^2 + 2334^2 .

It is not a de Polignac number, because 28574037 - 2⁸ = 28573781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28573992 and 28574010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574017) 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, 1587438 + ... + 1587455.

It is an arithmetic number, because the mean of its divisors is an integer number (6878937).

Almost surely, 2^28574037 is an apocalyptic number.

It is an amenable number.

28574037 is a deficient number, since it is larger than the sum of its proper divisors (12699585).

28574037 is a wasteful number, since it uses less digits than its factorization.

28574037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174899 (or 3174896 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 28574037 is about 5345.4688288306. The cubic root of 28574037 is about 305.7200117362.

The spelling of 28574037 in words is "twenty-eight million, five hundred seventy-four thousand, thirty-seven".