28261423 has 8 divisors (see below), whose sum is σ = 29106000. Its totient is φ = 27424320.

The previous prime is 28261421. The next prime is 28261427. The reversal of 28261423 is 32416282.

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

It is a cyclic number.

It is not a de Polignac number, because 28261423 - 2¹ = 28261421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28261391 and 28261400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28261421) 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, 6328 + ... + 9826.

It is an arithmetic number, because the mean of its divisors is an integer number (3638250).

Almost surely, 2^28261423 is an apocalyptic number.

28261423 is a deficient number, since it is larger than the sum of its proper divisors (844577).

28261423 is a wasteful number, since it uses less digits than its factorization.

28261423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737.

The product of its digits is 4608, while the sum is 28.

The square root of 28261423 is about 5316.1473832090. The cubic root of 28261423 is about 304.6010119262.

The spelling of 28261423 in words is "twenty-eight million, two hundred sixty-one thousand, four hundred twenty-three".