28254943 has 8 divisors (see below), whose sum is σ = 29207808. Its totient is φ = 27316824.

The previous prime is 28254937. The next prime is 28254949. The reversal of 28254943 is 34945282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28254937) and next prime (28254949).

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-28254943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28254949) 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, 280 + ... + 7522.

It is an arithmetic number, because the mean of its divisors is an integer number (3650976).

Almost surely, 2^28254943 is an apocalyptic number.

28254943 is a deficient number, since it is larger than the sum of its proper divisors (952865).

28254943 is an equidigital number, since it uses as much as digits as its factorization.

28254943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373.

The product of its digits is 69120, while the sum is 37.

The square root of 28254943 is about 5315.5378843538. The cubic root of 28254943 is about 304.5777297129.

It can be divided in two parts, 282 and 54943, that added together give a square (55225 = 235²).

The spelling of 28254943 in words is "twenty-eight million, two hundred fifty-four thousand, nine hundred forty-three".