16887061 has 4 divisors (see below), whose sum is σ = 17044992. Its totient is φ = 16729132.

The previous prime is 16887047. The next prime is 16887071. The reversal of 16887061 is 16078861.

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 16887061 - 2⁹ = 16886549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16887061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16887041) 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, 78805 + ... + 79018.

It is an arithmetic number, because the mean of its divisors is an integer number (4261248).

Almost surely, 2^16887061 is an apocalyptic number.

It is an amenable number.

16887061 is a deficient number, since it is larger than the sum of its proper divisors (157931).

16887061 is a wasteful number, since it uses less digits than its factorization.

16887061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157930.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 16887061 is about 4109.3869372450. The cubic root of 16887061 is about 256.5574856558.

The spelling of 16887061 in words is "sixteen million, eight hundred eighty-seven thousand, sixty-one".