28573554 has 8 divisors (see below), whose sum is σ = 57147120. Its totient is φ = 9524516.

The previous prime is 28573553. The next prime is 28573621. The reversal of 28573554 is 45537582.

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

28573554 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28573553) 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, 2381124 + ... + 2381135.

It is an arithmetic number, because the mean of its divisors is an integer number (7143390).

Almost surely, 2^28573554 is an apocalyptic number.

28573554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28573554 is a wasteful number, since it uses less digits than its factorization.

28573554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762264.

The product of its digits is 168000, while the sum is 39.

The square root of 28573554 is about 5345.4236501890. The cubic root of 28573554 is about 305.7182891515.

The spelling of 28573554 in words is "twenty-eight million, five hundred seventy-three thousand, five hundred fifty-four".