28786026 has 16 divisors (see below), whose sum is σ = 60602400. Its totient is φ = 9090288.

The previous prime is 28786003. The next prime is 28786039. The reversal of 28786026 is 62068782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126141 + ... + 126368.

It is an arithmetic number, because the mean of its divisors is an integer number (3787650).

Almost surely, 2^28786026 is an apocalyptic number.

28786026 is an abundant number, since it is smaller than the sum of its proper divisors (31816374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28786026 is a wasteful number, since it uses less digits than its factorization.

28786026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252533.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 28786026 is about 5365.2610374520. The cubic root of 28786026 is about 306.4741889740.

The spelling of 28786026 in words is "twenty-eight million, seven hundred eighty-six thousand, twenty-six".