28969386 has 16 divisors (see below), whose sum is σ = 58010304. Its totient is φ = 9644544.

The previous prime is 28969373. The next prime is 28969387. The reversal of 28969386 is 68396982.

It is not an unprimeable number, because it can be changed into a prime (28969387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3306 + ... + 8298.

It is an arithmetic number, because the mean of its divisors is an integer number (3625644).

Almost surely, 2^28969386 is an apocalyptic number.

28969386 is an abundant number, since it is smaller than the sum of its proper divisors (29040918).

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

28969386 is a wasteful number, since it uses less digits than its factorization.

28969386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965.

The product of its digits is 1119744, while the sum is 51.

The square root of 28969386 is about 5382.3216180381. The cubic root of 28969386 is about 307.1235342656.

The spelling of 28969386 in words is "twenty-eight million, nine hundred sixty-nine thousand, three hundred eighty-six".