16023881 has 2 divisors, whose sum is σ = 16023882. Its totient is φ = 16023880.

The previous prime is 16023871. The next prime is 16023937. The reversal of 16023881 is 18832061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8094025 + 7929856 = 2845^2 + 2816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16023881 is a prime.

It is a super-2 number, since 2×16023881² = 513529524604322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16023811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8011940 + 8011941.

It is an arithmetic number, because the mean of its divisors is an integer number (8011941).

Almost surely, 2^16023881 is an apocalyptic number.

It is an amenable number.

16023881 is a deficient number, since it is larger than the sum of its proper divisors (1).

16023881 is an equidigital number, since it uses as much as digits as its factorization.

16023881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 16023881 is about 4002.9840119591. The cubic root of 16023881 is about 252.1095150519.

The spelling of 16023881 in words is "sixteen million, twenty-three thousand, eight hundred eighty-one".