28696911 has 8 divisors (see below), whose sum is σ = 38339760. Its totient is φ = 19092672.

The previous prime is 28696909. The next prime is 28696949. The reversal of 28696911 is 11969682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28696911 - 2¹ = 28696909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28696961) 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, 7870 + ... + 10923.

It is an arithmetic number, because the mean of its divisors is an integer number (4792470).

Almost surely, 2^28696911 is an apocalyptic number.

28696911 is a deficient number, since it is larger than the sum of its proper divisors (9642849).

28696911 is a wasteful number, since it uses less digits than its factorization.

28696911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19305.

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

The square root of 28696911 is about 5356.9497850923. The cubic root of 28696911 is about 306.1576038913.

The spelling of 28696911 in words is "twenty-eight million, six hundred ninety-six thousand, nine hundred eleven".