28996844 has 6 divisors (see below), whose sum is σ = 50744484. Its totient is φ = 14498420.

The previous prime is 28996843. The next prime is 28996867. The reversal of 28996844 is 44869982.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28996792 and 28996801.

It is not an unprimeable number, because it can be changed into a prime (28996843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3624602 + ... + 3624609.

It is an arithmetic number, because the mean of its divisors is an integer number (8457414).

Almost surely, 2^28996844 is an apocalyptic number.

It is an amenable number.

28996844 is a deficient number, since it is larger than the sum of its proper divisors (21747640).

28996844 is a wasteful number, since it uses less digits than its factorization.

28996844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249215 (or 7249213 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 28996844 is about 5384.8717719181. The cubic root of 28996844 is about 307.2205370701.

The spelling of 28996844 in words is "twenty-eight million, nine hundred ninety-six thousand, eight hundred forty-four".