28927119 has 8 divisors (see below), whose sum is σ = 41536432. Its totient is φ = 17801280.

The previous prime is 28927117. The next prime is 28927127. The reversal of 28927119 is 91172982.

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

It is not a de Polignac number, because 28927119 - 2¹ = 28927117 is a prime.

It is a super-2 number, since 2×28927119² = 1673556427280322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 741721 = 28927119 / (2 + 8 + 9 + 2 + 7 + 1 + 1 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28927111) 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, 370822 + ... + 370899.

It is an arithmetic number, because the mean of its divisors is an integer number (5192054).

Almost surely, 2^28927119 is an apocalyptic number.

28927119 is a deficient number, since it is larger than the sum of its proper divisors (12609313).

28927119 is a wasteful number, since it uses less digits than its factorization.

28927119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741737.

The product of its digits is 18144, while the sum is 39.

The square root of 28927119 is about 5378.3937193181. The cubic root of 28927119 is about 306.9740947984.

It can be divided in two parts, 2892 and 7119, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 28927119 in words is "twenty-eight million, nine hundred twenty-seven thousand, one hundred nineteen".