28766706 has 16 divisors (see below), whose sum is σ = 57592704. Its totient is φ = 9579024.

The previous prime is 28766693. The next prime is 28766711. The reversal of 28766706 is 60766782.

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, 6156 + ... + 9768.

It is an arithmetic number, because the mean of its divisors is an integer number (3599544).

Almost surely, 2^28766706 is an apocalyptic number.

28766706 is an abundant number, since it is smaller than the sum of its proper divisors (28825998).

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

28766706 is a wasteful number, since it uses less digits than its factorization.

28766706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 28766706 is about 5363.4602636731. The cubic root of 28766706 is about 306.4056093272.

The spelling of 28766706 in words is "twenty-eight million, seven hundred sixty-six thousand, seven hundred six".