28743037 has 2 divisors, whose sum is σ = 28743038. Its totient is φ = 28743036.

The previous prime is 28742977. The next prime is 28743041. The reversal of 28743037 is 73034782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26822041 + 1920996 = 5179^2 + 1386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28743037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28742993 and 28743011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28743937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14371518 + 14371519.

It is an arithmetic number, because the mean of its divisors is an integer number (14371519).

Almost surely, 2^28743037 is an apocalyptic number.

It is an amenable number.

28743037 is a deficient number, since it is larger than the sum of its proper divisors (1).

28743037 is an equidigital number, since it uses as much as digits as its factorization.

28743037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 28743037 is about 5361.2533049652. The cubic root of 28743037 is about 306.3215502959.

The spelling of 28743037 in words is "twenty-eight million, seven hundred forty-three thousand, thirty-seven".