28746003 has 32 divisors (see below), whose sum is σ = 46271232. Its totient is φ = 15638400.

The previous prime is 28745987. The next prime is 28746037. The reversal of 28746003 is 30064782.

It is not a de Polignac number, because 28746003 - 2⁴ = 28745987 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28746103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14968 + ... + 16778.

It is an arithmetic number, because the mean of its divisors is an integer number (1445976).

Almost surely, 2^28746003 is an apocalyptic number.

28746003 is a deficient number, since it is larger than the sum of its proper divisors (17525229).

28746003 is a wasteful number, since it uses less digits than its factorization.

28746003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 28746003 is about 5361.5299122545. The cubic root of 28746003 is about 306.3320863951.

It can be divided in two parts, 28 and 746003, that added together give a triangular number (746031 = T₁₂₂₁).

The spelling of 28746003 in words is "twenty-eight million, seven hundred forty-six thousand, three".