28893601 has 4 divisors (see below), whose sum is σ = 31520304. Its totient is φ = 26266900.

The previous prime is 28893587. The next prime is 28893607. The reversal of 28893601 is 10639882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28893601 - 2⁵ = 28893569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28893607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313335 + ... + 1313356.

It is an arithmetic number, because the mean of its divisors is an integer number (7880076).

Almost surely, 2^28893601 is an apocalyptic number.

It is an amenable number.

28893601 is a deficient number, since it is larger than the sum of its proper divisors (2626703).

28893601 is a wasteful number, since it uses less digits than its factorization.

28893601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626702.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 28893601 is about 5375.2768300805. The cubic root of 28893601 is about 306.8554848266.

The spelling of 28893601 in words is "twenty-eight million, eight hundred ninety-three thousand, six hundred one".