28799554 has 24 divisors (see below), whose sum is σ = 52900560. Its totient is φ = 11692296.

The previous prime is 28799543. The next prime is 28799557. The reversal of 28799554 is 45599782.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 28799498 and 28799507.

It is not an unprimeable number, because it can be changed into a prime (28799557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5872 + ... + 9595.

It is an arithmetic number, because the mean of its divisors is an integer number (2204190).

Almost surely, 2^28799554 is an apocalyptic number.

28799554 is a deficient number, since it is larger than the sum of its proper divisors (24101006).

28799554 is a wasteful number, since it uses less digits than its factorization.

28799554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15502 (or 15495 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 28799554 is about 5366.5215922420. The cubic root of 28799554 is about 306.5221906622.

The spelling of 28799554 in words is "twenty-eight million, seven hundred ninety-nine thousand, five hundred fifty-four".