28437049 has 2 divisors, whose sum is σ = 28437050. Its totient is φ = 28437048.

The previous prime is 28437047. The next prime is 28437089. The reversal of 28437049 is 94073482.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24800400 + 3636649 = 4980^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 28437049 - 2¹ = 28437047 is a prime.

Together with 28437047, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28436999 and 28437017.

It is not a weakly prime, because it can be changed into another prime (28437043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14218524 + 14218525.

It is an arithmetic number, because the mean of its divisors is an integer number (14218525).

Almost surely, 2^28437049 is an apocalyptic number.

It is an amenable number.

28437049 is a deficient number, since it is larger than the sum of its proper divisors (1).

28437049 is an equidigital number, since it uses as much as digits as its factorization.

28437049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 28437049 is about 5332.6399653455. The cubic root of 28437049 is about 305.2306738339.

The spelling of 28437049 in words is "twenty-eight million, four hundred thirty-seven thousand, forty-nine".