28362147 has 8 divisors (see below), whose sum is σ = 41254080. Its totient is φ = 17189160.

The previous prime is 28362109. The next prime is 28362149. The reversal of 28362147 is 74126382.

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

It is not a de Polignac number, because 28362147 - 2¹¹ = 28360099 is a prime.

It is a super-2 number, since 2×28362147² = 1608822764899218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 859459 = 28362147 / (2 + 8 + 3 + 6 + 2 + 1 + 4 + 7).

It is not an unprimeable number, because it can be changed into a prime (28362149) 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, 429697 + ... + 429762.

It is an arithmetic number, because the mean of its divisors is an integer number (5156760).

Almost surely, 2^28362147 is an apocalyptic number.

28362147 is a deficient number, since it is larger than the sum of its proper divisors (12891933).

28362147 is a wasteful number, since it uses less digits than its factorization.

28362147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859473.

The product of its digits is 16128, while the sum is 33.

The square root of 28362147 is about 5325.6123591565. The cubic root of 28362147 is about 304.9624499145.

The spelling of 28362147 in words is "twenty-eight million, three hundred sixty-two thousand, one hundred forty-seven".