28746037 has 2 divisors, whose sum is σ = 28746038. Its totient is φ = 28746036.

The previous prime is 28745987. The next prime is 28746049. The reversal of 28746037 is 73064782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28291761 + 454276 = 5319^2 + 674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28746037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28745987 and 28746005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28746937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14373018 + 14373019.

It is an arithmetic number, because the mean of its divisors is an integer number (14373019).

Almost surely, 2^28746037 is an apocalyptic number.

It is an amenable number.

28746037 is a deficient number, since it is larger than the sum of its proper divisors (1).

28746037 is an equidigital number, since it uses as much as digits as its factorization.

28746037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 28746037 is about 5361.5330829903. The cubic root of 28746037 is about 306.3322071688.

It can be divided in two parts, 2874 and 6037, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 28746037 in words is "twenty-eight million, seven hundred forty-six thousand, thirty-seven".