16427869 has 2 divisors, whose sum is σ = 16427870. Its totient is φ = 16427868.

The previous prime is 16427857. The next prime is 16427881. The reversal of 16427869 is 96872461.

It is a balanced prime because it is at equal distance from previous prime (16427857) and next prime (16427881).

It can be written as a sum of positive squares in only one way, i.e., 15705369 + 722500 = 3963^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 16427869 - 2⁹ = 16427357 is a prime.

It is a super-2 number, since 2×16427869² = 539749759762322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16427809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213934 + 8213935.

It is an arithmetic number, because the mean of its divisors is an integer number (8213935).

Almost surely, 2^16427869 is an apocalyptic number.

It is an amenable number.

16427869 is a deficient number, since it is larger than the sum of its proper divisors (1).

16427869 is an equidigital number, since it uses as much as digits as its factorization.

16427869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 16427869 is about 4053.1307652233. The cubic root of 16427869 is about 254.2106515057.

The spelling of 16427869 in words is "sixteen million, four hundred twenty-seven thousand, eight hundred sixty-nine".