28574073 has 64 divisors (see below), whose sum is σ = 49766400. Its totient is φ = 16030080.

The previous prime is 28574069. The next prime is 28574107. The reversal of 28574073 is 37047582.

It is not a de Polignac number, because 28574073 - 2² = 28574069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28574003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321013 + ... + 321101.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^28574073 is an apocalyptic number.

28574073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28574073 is a deficient number, since it is larger than the sum of its proper divisors (21192327).

28574073 is a wasteful number, since it uses less digits than its factorization.

28574073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 28574073 is about 5345.4721961675. The cubic root of 28574073 is about 305.7201401268.

The spelling of 28574073 in words is "twenty-eight million, five hundred seventy-four thousand, seventy-three".