28813741 has 8 divisors (see below), whose sum is σ = 32164704. Its totient is φ = 25584720.

The previous prime is 28813723. The next prime is 28813751. The reversal of 28813741 is 14731882.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28813741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28813697 and 28813706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28813751) 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, 29986 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (4020588).

Almost surely, 2^28813741 is an apocalyptic number.

It is an amenable number.

28813741 is a deficient number, since it is larger than the sum of its proper divisors (3350963).

28813741 is a wasteful number, since it uses less digits than its factorization.

28813741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60971.

The product of its digits is 10752, while the sum is 34.

The square root of 28813741 is about 5367.8432354159. The cubic root of 28813741 is about 306.5725145486.

The spelling of 28813741 in words is "twenty-eight million, eight hundred thirteen thousand, seven hundred forty-one".