28774603 has 16 divisors (see below), whose sum is σ = 34900992. Its totient is φ = 23364000.

The previous prime is 28774573. The next prime is 28774609. The reversal of 28774603 is 30647782.

It is not a de Polignac number, because 28774603 - 2²¹ = 26677451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28774609) 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 in 15 ways as a sum of consecutive naturals, for example, 1188 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (2181312).

Almost surely, 2^28774603 is an apocalyptic number.

28774603 is a deficient number, since it is larger than the sum of its proper divisors (6126389).

28774603 is a wasteful number, since it uses less digits than its factorization.

28774603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6546.

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

The square root of 28774603 is about 5364.1963983434. The cubic root of 28774603 is about 306.4336447896.

The spelling of 28774603 in words is "twenty-eight million, seven hundred seventy-four thousand, six hundred three".