28901116 has 6 divisors (see below), whose sum is σ = 50576960. Its totient is φ = 14450556.

The previous prime is 28901113. The next prime is 28901141. The reversal of 28901116 is 61110982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28901113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3612636 + ... + 3612643.

Almost surely, 2^28901116 is an apocalyptic number.

It is an amenable number.

28901116 is a deficient number, since it is larger than the sum of its proper divisors (21675844).

28901116 is a wasteful number, since it uses less digits than its factorization.

28901116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225283 (or 7225281 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 28901116 is about 5375.9758183980. The cubic root of 28901116 is about 306.8820860923.

The spelling of 28901116 in words is "twenty-eight million, nine hundred one thousand, one hundred sixteen".