28739003 has 2 divisors, whose sum is σ = 28739004. Its totient is φ = 28739002.

The previous prime is 28738981. The next prime is 28739017. The reversal of 28739003 is 30093782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28739003 - 2⁶ = 28738939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28739603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14369501 + 14369502.

It is an arithmetic number, because the mean of its divisors is an integer number (14369502).

Almost surely, 2^28739003 is an apocalyptic number.

28739003 is a deficient number, since it is larger than the sum of its proper divisors (1).

28739003 is an equidigital number, since it uses as much as digits as its factorization.

28739003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 28739003 is about 5360.8770737632. The cubic root of 28739003 is about 306.3072191850.

The spelling of 28739003 in words is "twenty-eight million, seven hundred thirty-nine thousand, three".