28691196 has 24 divisors (see below), whose sum is σ = 67208064. Its totient is φ = 9526320.

The previous prime is 28691183. The next prime is 28691207. The reversal of 28691196 is 69119682.

It is a congruent 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, 1390 + ... + 7701.

It is an arithmetic number, because the mean of its divisors is an integer number (2800336).

Almost surely, 2^28691196 is an apocalyptic number.

It is an amenable number.

28691196 is an abundant number, since it is smaller than the sum of its proper divisors (38516868).

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

28691196 is a wasteful number, since it uses less digits than its factorization.

28691196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361 (or 9359 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 28691196 is about 5356.4163393075. The cubic root of 28691196 is about 306.1372787435.

The spelling of 28691196 in words is "twenty-eight million, six hundred ninety-one thousand, one hundred ninety-six".