28573101 has 8 divisors (see below), whose sum is σ = 42330560. Its totient is φ = 19048716.

The previous prime is 28573099. The next prime is 28573123. The reversal of 28573101 is 10137582.

It is not a de Polignac number, because 28573101 - 2¹ = 28573099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1058263 = 28573101 / (2 + 8 + 5 + 7 + 3 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529105 + ... + 529158.

It is an arithmetic number, because the mean of its divisors is an integer number (5291320).

Almost surely, 2^28573101 is an apocalyptic number.

It is an amenable number.

28573101 is a deficient number, since it is larger than the sum of its proper divisors (13757459).

28573101 is a wasteful number, since it uses less digits than its factorization.

28573101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058272 (or 1058266 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 28573101 is about 5345.3812773272. The cubic root of 28573101 is about 305.7166735419.

The spelling of 28573101 in words is "twenty-eight million, five hundred seventy-three thousand, one hundred one".