28150037 has 2 divisors, whose sum is σ = 28150038. Its totient is φ = 28150036.

The previous prime is 28150033. The next prime is 28150063. The reversal of 28150037 is 73005182.

It is an a-pointer prime, because the next prime (28150063) can be obtained adding 28150037 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26275876 + 1874161 = 5126^2 + 1369^2 .

It is a cyclic number.

It is not a de Polignac number, because 28150037 - 2² = 28150033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28149988 and 28150015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28150033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14075018 + 14075019.

It is an arithmetic number, because the mean of its divisors is an integer number (14075019).

Almost surely, 2^28150037 is an apocalyptic number.

It is an amenable number.

28150037 is a deficient number, since it is larger than the sum of its proper divisors (1).

28150037 is an equidigital number, since it uses as much as digits as its factorization.

28150037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 28150037 is about 5305.6608447959. The cubic root of 28150037 is about 304.2003130687.

The spelling of 28150037 in words is "twenty-eight million, one hundred fifty thousand, thirty-seven".