28397802 has 16 divisors (see below), whose sum is σ = 58116960. Its totient is φ = 9245712.

The previous prime is 28397797. The next prime is 28397861. The reversal of 28397802 is 20879382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54777 + ... + 55292.

It is an arithmetic number, because the mean of its divisors is an integer number (3632310).

Almost surely, 2^28397802 is an apocalyptic number.

28397802 is an abundant number, since it is smaller than the sum of its proper divisors (29719158).

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

28397802 is a wasteful number, since it uses less digits than its factorization.

28397802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110117.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 28397802 is about 5328.9588101242. The cubic root of 28397802 is about 305.0901892200.

The spelling of 28397802 in words is "twenty-eight million, three hundred ninety-seven thousand, eight hundred two".