28383151 has 4 divisors (see below), whose sum is σ = 28467712. Its totient is φ = 28298592.

The previous prime is 28383133. The next prime is 28383161. The reversal of 28383151 is 15138382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28383151 - 2⁷ = 28383023 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 (28383101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41775 + ... + 42448.

It is an arithmetic number, because the mean of its divisors is an integer number (7116928).

Almost surely, 2^28383151 is an apocalyptic number.

28383151 is a deficient number, since it is larger than the sum of its proper divisors (84561).

28383151 is an equidigital number, since it uses as much as digits as its factorization.

28383151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84560.

The product of its digits is 5760, while the sum is 31.

The square root of 28383151 is about 5327.5839739980. The cubic root of 28383151 is about 305.0377127961.

The spelling of 28383151 in words is "twenty-eight million, three hundred eighty-three thousand, one hundred fifty-one".