28851394 has 32 divisors (see below), whose sum is σ = 51166080. Its totient is φ = 12028800.

The previous prime is 28851391. The next prime is 28851437. The reversal of 28851394 is 49315882.

It is not an unprimeable number, because it can be changed into a prime (28851391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80187 + ... + 80545.

It is an arithmetic number, because the mean of its divisors is an integer number (1598940).

Almost surely, 2^28851394 is an apocalyptic number.

28851394 is a deficient number, since it is larger than the sum of its proper divisors (22314686).

28851394 is a wasteful number, since it uses less digits than its factorization.

28851394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its digits is 69120, while the sum is 40.

The square root of 28851394 is about 5371.3493649175. The cubic root of 28851394 is about 306.7059965835.

The spelling of 28851394 in words is "twenty-eight million, eight hundred fifty-one thousand, three hundred ninety-four".