16428927 has 4 divisors (see below), whose sum is σ = 21905240. Its totient is φ = 10952616.

The previous prime is 16428913. The next prime is 16428941. The reversal of 16428927 is 72982461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72982461 = 3 ⋅24327487.

It is an interprime number because it is at equal distance from previous prime (16428913) and next prime (16428941).

It is not a de Polignac number, because 16428927 - 2¹² = 16424831 is a prime.

It is a super-3 number, since 3×16428927³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16428227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738152 + ... + 2738157.

It is an arithmetic number, because the mean of its divisors is an integer number (5476310).

Almost surely, 2^16428927 is an apocalyptic number.

16428927 is a deficient number, since it is larger than the sum of its proper divisors (5476313).

16428927 is an equidigital number, since it uses as much as digits as its factorization.

16428927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476312.

The product of its digits is 48384, while the sum is 39.

The square root of 16428927 is about 4053.2612795131. The cubic root of 16428927 is about 254.2161086772.

The spelling of 16428927 in words is "sixteen million, four hundred twenty-eight thousand, nine hundred twenty-seven".