16119887 has 4 divisors (see below), whose sum is σ = 18422736. Its totient is φ = 13817040.

The previous prime is 16119881. The next prime is 16119889. The reversal of 16119887 is 78891161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16119887 - 2⁶ = 16119823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16119881) 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, 1151414 + ... + 1151427.

It is an arithmetic number, because the mean of its divisors is an integer number (4605684).

Almost surely, 2^16119887 is an apocalyptic number.

16119887 is a deficient number, since it is larger than the sum of its proper divisors (2302849).

16119887 is an equidigital number, since it uses as much as digits as its factorization.

16119887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302848.

The product of its digits is 24192, while the sum is 41.

The square root of 16119887 is about 4014.9579076249. The cubic root of 16119887 is about 252.6120118655.

The spelling of 16119887 in words is "sixteen million, one hundred nineteen thousand, eight hundred eighty-seven".