28298554 has 8 divisors (see below), whose sum is σ = 42484320. Its totient is φ = 14137116.

The previous prime is 28298551. The next prime is 28298561. The reversal of 28298554 is 45589282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28298554.

It is not an unprimeable number, because it can be changed into a prime (28298551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2824 + ... + 8035.

It is an arithmetic number, because the mean of its divisors is an integer number (5310540).

Almost surely, 2^28298554 is an apocalyptic number.

28298554 is a deficient number, since it is larger than the sum of its proper divisors (14185766).

28298554 is a wasteful number, since it uses less digits than its factorization.

28298554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12164.

The product of its digits is 230400, while the sum is 43.

The square root of 28298554 is about 5319.6385215539. The cubic root of 28298554 is about 304.7343525881.

The spelling of 28298554 in words is "twenty-eight million, two hundred ninety-eight thousand, five hundred fifty-four".