28885154 has 4 divisors (see below), whose sum is σ = 43327734. Its totient is φ = 14442576.

The previous prime is 28885141. The next prime is 28885163. The reversal of 28885154 is 45158882.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27615025 + 1270129 = 5255^2 + 1127^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7221287 + ... + 7221290.

Almost surely, 2^28885154 is an apocalyptic number.

28885154 is a deficient number, since it is larger than the sum of its proper divisors (14442580).

28885154 is a wasteful number, since it uses less digits than its factorization.

28885154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14442579.

The product of its digits is 102400, while the sum is 41.

The square root of 28885154 is about 5374.4910456712. The cubic root of 28885154 is about 306.8255790018.

The spelling of 28885154 in words is "twenty-eight million, eight hundred eighty-five thousand, one hundred fifty-four".