28851916 has 6 divisors (see below), whose sum is σ = 50490860. Its totient is φ = 14425956.

The previous prime is 28851883. The next prime is 28851919. The reversal of 28851916 is 61915882.

It is not an unprimeable number, because it can be changed into a prime (28851919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606486 + ... + 3606493.

Almost surely, 2^28851916 is an apocalyptic number.

It is an amenable number.

28851916 is a deficient number, since it is larger than the sum of its proper divisors (21638944).

28851916 is a wasteful number, since it uses less digits than its factorization.

28851916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212983 (or 7212981 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The square root of 28851916 is about 5371.3979558398. The cubic root of 28851916 is about 306.7078462869.

The spelling of 28851916 in words is "twenty-eight million, eight hundred fifty-one thousand, nine hundred sixteen".