16038861 has 4 divisors (see below), whose sum is σ = 21385152. Its totient is φ = 10692572.

The previous prime is 16038857. The next prime is 16038877. The reversal of 16038861 is 16883061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16038861 - 2² = 16038857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16038821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2673141 + ... + 2673146.

It is an arithmetic number, because the mean of its divisors is an integer number (5346288).

Almost surely, 2^16038861 is an apocalyptic number.

It is an amenable number.

16038861 is a deficient number, since it is larger than the sum of its proper divisors (5346291).

16038861 is an equidigital number, since it uses as much as digits as its factorization.

16038861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346290.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 16038861 is about 4004.8546790115. The cubic root of 16038861 is about 252.1880525025.

The spelling of 16038861 in words is "sixteen million, thirty-eight thousand, eight hundred sixty-one".