28502198 has 8 divisors (see below), whose sum is σ = 44612208. Its totient is φ = 13631464.

The previous prime is 28502197. The next prime is 28502231. The reversal of 28502198 is 89120582.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28502197) 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, 309761 + ... + 309852.

It is an arithmetic number, because the mean of its divisors is an integer number (5576526).

Almost surely, 2^28502198 is an apocalyptic number.

28502198 is a deficient number, since it is larger than the sum of its proper divisors (16110010).

28502198 is a wasteful number, since it uses less digits than its factorization.

28502198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619638.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28502198 is about 5338.7449836080. The cubic root of 28502198 is about 305.4635895472.

The spelling of 28502198 in words is "twenty-eight million, five hundred two thousand, one hundred ninety-eight".