28357101 has 32 divisors (see below), whose sum is σ = 44620800. Its totient is φ = 17748720.

The previous prime is 28357073. The next prime is 28357103. The reversal of 28357101 is 10175382.

It is not a de Polignac number, because 28357101 - 2⁹ = 28356589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28357103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85506 + ... + 85836.

It is an arithmetic number, because the mean of its divisors is an integer number (1394400).

Almost surely, 2^28357101 is an apocalyptic number.

It is an amenable number.

28357101 is a deficient number, since it is larger than the sum of its proper divisors (16263699).

28357101 is a wasteful number, since it uses less digits than its factorization.

28357101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 520 counting only the distinct ones).

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

The square root of 28357101 is about 5325.1385897458. The cubic root of 28357101 is about 304.9443632279.

The spelling of 28357101 in words is "twenty-eight million, three hundred fifty-seven thousand, one hundred one".