28776602 has 32 divisors (see below), whose sum is σ = 47369280. Its totient is φ = 13063680.

The previous prime is 28776599. The next prime is 28776607. The reversal of 28776602 is 20667782.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (28776607) 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, 136277 + ... + 136487.

It is an arithmetic number, because the mean of its divisors is an integer number (1480290).

Almost surely, 2^28776602 is an apocalyptic number.

28776602 is a deficient number, since it is larger than the sum of its proper divisors (18592678).

28776602 is a wasteful number, since it uses less digits than its factorization.

28776602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 28776602 is about 5364.3827231099. The cubic root of 28776602 is about 306.4407407077.

The spelling of 28776602 in words is "twenty-eight million, seven hundred seventy-six thousand, six hundred two".