28153383 has 8 divisors (see below), whose sum is σ = 39513600. Its totient is φ = 17781048.

The previous prime is 28153381. The next prime is 28153393. The reversal of 28153383 is 38335182.

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

It is not a de Polignac number, because 28153383 - 2¹ = 28153381 is a prime.

It is a super-2 number, since 2×28153383² = 1585225948689378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28153381) 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, 246903 + ... + 247016.

It is an arithmetic number, because the mean of its divisors is an integer number (4939200).

Almost surely, 2^28153383 is an apocalyptic number.

28153383 is a deficient number, since it is larger than the sum of its proper divisors (11360217).

28153383 is a wasteful number, since it uses less digits than its factorization.

28153383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493941.

The product of its digits is 17280, while the sum is 33.

The square root of 28153383 is about 5305.9761590116. The cubic root of 28153383 is about 304.2123653195.

The spelling of 28153383 in words is "twenty-eight million, one hundred fifty-three thousand, three hundred eighty-three".