28863898 has 16 divisors (see below), whose sum is σ = 49559040. Its totient is φ = 12350736.

The previous prime is 28863893. The next prime is 28863899. The reversal of 28863898 is 89836882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28863893) 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, 10888 + ... + 13276.

It is an arithmetic number, because the mean of its divisors is an integer number (3097440).

Almost surely, 2^28863898 is an apocalyptic number.

28863898 is a deficient number, since it is larger than the sum of its proper divisors (20695142).

28863898 is a wasteful number, since it uses less digits than its factorization.

28863898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its digits is 1327104, while the sum is 52.

The square root of 28863898 is about 5372.5131921662. The cubic root of 28863898 is about 306.7502982891.

The spelling of 28863898 in words is "twenty-eight million, eight hundred sixty-three thousand, eight hundred ninety-eight".