16887423 has 16 divisors (see below), whose sum is σ = 26157056. Its totient is φ = 9491040.

The previous prime is 16887419. The next prime is 16887439. The reversal of 16887423 is 32478861.

It is not a de Polignac number, because 16887423 - 2² = 16887419 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 (16887413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5311 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (1634816).

Almost surely, 2^16887423 is an apocalyptic number.

16887423 is a deficient number, since it is larger than the sum of its proper divisors (9269633).

16887423 is a wasteful number, since it uses less digits than its factorization.

16887423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13254.

The product of its digits is 64512, while the sum is 39.

The square root of 16887423 is about 4109.4309825084. The cubic root of 16887423 is about 256.5593188769.

The spelling of 16887423 in words is "sixteen million, eight hundred eighty-seven thousand, four hundred twenty-three".