28766829 has 16 divisors (see below), whose sum is σ = 47207552. Its totient is φ = 15173568.

The previous prime is 28766827. The next prime is 28766831. The reversal of 28766829 is 92866782.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28766827) and next prime (28766831).

It is not a de Polignac number, because 28766829 - 2¹ = 28766827 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28766827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52414 + ... + 52959.

It is an arithmetic number, because the mean of its divisors is an integer number (2950472).

Almost surely, 2^28766829 is an apocalyptic number.

It is an amenable number.

28766829 is a deficient number, since it is larger than the sum of its proper divisors (18440723).

28766829 is a wasteful number, since it uses less digits than its factorization.

28766829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105396.

The product of its digits is 580608, while the sum is 48.

The square root of 28766829 is about 5363.4717301390. The cubic root of 28766829 is about 306.4060460339.

The spelling of 28766829 in words is "twenty-eight million, seven hundred sixty-six thousand, eight hundred twenty-nine".