28901214 has 24 divisors (see below), whose sum is σ = 62732592. Its totient is φ = 9616320.

The previous prime is 28901177. The next prime is 28901221. The reversal of 28901214 is 41210982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12294 + ... + 14454.

It is an arithmetic number, because the mean of its divisors is an integer number (2613858).

Almost surely, 2^28901214 is an apocalyptic number.

28901214 is an abundant number, since it is smaller than the sum of its proper divisors (33831378).

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

28901214 is a wasteful number, since it uses less digits than its factorization.

28901214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 2909 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 28901214 is about 5375.9849330146. The cubic root of 28901214 is about 306.8824329579.

The spelling of 28901214 in words is "twenty-eight million, nine hundred one thousand, two hundred fourteen".