28601943 has 8 divisors (see below), whose sum is σ = 38184048. Its totient is φ = 19043904.

The previous prime is 28601921. The next prime is 28601953. The reversal of 28601943 is 34910682.

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

It is not a de Polignac number, because 28601943 - 2⁹ = 28601431 is a prime.

It is a super-2 number, since 2×28601943² = 1636142286750498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28601953) 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, 3030 + ... + 8147.

It is an arithmetic number, because the mean of its divisors is an integer number (4773006).

Almost surely, 2^28601943 is an apocalyptic number.

28601943 is a deficient number, since it is larger than the sum of its proper divisors (9582105).

28601943 is a wasteful number, since it uses less digits than its factorization.

28601943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12033.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 28601943 is about 5348.0784399633. The cubic root of 28601943 is about 305.8195035328.

The spelling of 28601943 in words is "twenty-eight million, six hundred one thousand, nine hundred forty-three".