28770337 has 2 divisors, whose sum is σ = 28770338. Its totient is φ = 28770336.

The previous prime is 28770331. The next prime is 28770353. The reversal of 28770337 is 73307782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23824161 + 4946176 = 4881^2 + 2224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28770337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28770296 and 28770305.

It is not a weakly prime, because it can be changed into another prime (28770331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14385168 + 14385169.

It is an arithmetic number, because the mean of its divisors is an integer number (14385169).

Almost surely, 2^28770337 is an apocalyptic number.

It is an amenable number.

28770337 is a deficient number, since it is larger than the sum of its proper divisors (1).

28770337 is an equidigital number, since it uses as much as digits as its factorization.

28770337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 28770337 is about 5363.7987471567. The cubic root of 28770337 is about 306.4185005258.

The spelling of 28770337 in words is "twenty-eight million, seven hundred seventy thousand, three hundred thirty-seven".