28100361 has 8 divisors (see below), whose sum is σ = 37631680. Its totient is φ = 18651312.

The previous prime is 28100329. The next prime is 28100377. The reversal of 28100361 is 16300182.

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

It is not a de Polignac number, because 28100361 - 2⁵ = 28100329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28100311) 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, 19765 + ... + 21138.

It is an arithmetic number, because the mean of its divisors is an integer number (4703960).

Almost surely, 2^28100361 is an apocalyptic number.

It is an amenable number.

28100361 is a deficient number, since it is larger than the sum of its proper divisors (9531319).

28100361 is a wasteful number, since it uses less digits than its factorization.

28100361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41135.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 28100361 is about 5300.9773627134. The cubic root of 28100361 is about 304.0212682777.

The spelling of 28100361 in words is "twenty-eight million, one hundred thousand, three hundred sixty-one".