28597073 has 8 divisors (see below), whose sum is σ = 30017088. Its totient is φ = 27191824.

The previous prime is 28597031. The next prime is 28597081. The reversal of 28597073 is 37079582.

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

It is a cyclic number.

It is not a de Polignac number, because 28597073 - 2¹⁶ = 28531537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28597073.

It is not an unprimeable number, because it can be changed into a prime (28597273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386 + ... + 7572.

It is an arithmetic number, because the mean of its divisors is an integer number (3752136).

Almost surely, 2^28597073 is an apocalyptic number.

28597073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28597073 is a deficient number, since it is larger than the sum of its proper divisors (1420015).

28597073 is a wasteful number, since it uses less digits than its factorization.

28597073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7383.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 28597073 is about 5347.6231168623. The cubic root of 28597073 is about 305.8021454402.

The spelling of 28597073 in words is "twenty-eight million, five hundred ninety-seven thousand, seventy-three".