28692986 has 16 divisors (see below), whose sum is σ = 49318080. Its totient is φ = 12264480.

The previous prime is 28692973. The next prime is 28693001. The reversal of 28692986 is 68929682.

It is a Curzon number.

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, 3221 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (3082380).

Almost surely, 2^28692986 is an apocalyptic number.

28692986 is a deficient number, since it is larger than the sum of its proper divisors (20625094).

28692986 is a wasteful number, since it uses less digits than its factorization.

28692986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429.

The product of its digits is 746496, while the sum is 50.

The square root of 28692986 is about 5356.5834260282. The cubic root of 28692986 is about 306.1436450906.

The spelling of 28692986 in words is "twenty-eight million, six hundred ninety-two thousand, nine hundred eighty-six".