28925037 has 6 divisors (see below), whose sum is σ = 41780622. Its totient is φ = 19283352.

The previous prime is 28925027. The next prime is 28925051. The reversal of 28925037 is 73052982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25918281 + 3006756 = 5091^2 + 1734^2 .

It is not a de Polignac number, because 28925037 - 2⁸ = 28924781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28924992 and 28925010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28925027) 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, 1606938 + ... + 1606955.

It is an arithmetic number, because the mean of its divisors is an integer number (6963437).

Almost surely, 2^28925037 is an apocalyptic number.

It is an amenable number.

28925037 is a deficient number, since it is larger than the sum of its proper divisors (12855585).

28925037 is a wasteful number, since it uses less digits than its factorization.

28925037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213899 (or 3213896 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 28925037 is about 5378.2001636235. The cubic root of 28925037 is about 306.9667299055.

The spelling of 28925037 in words is "twenty-eight million, nine hundred twenty-five thousand, thirty-seven".