16487623 has 4 divisors (see below), whose sum is σ = 16527208. Its totient is φ = 16448040.

The previous prime is 16487621. The next prime is 16487641. The reversal of 16487623 is 32678461.

16487623 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32678461 = 19 ⋅1719919.

It is a cyclic number.

It is not a de Polignac number, because 16487623 - 2¹ = 16487621 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 (16487621) 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, 19161 + ... + 20002.

It is an arithmetic number, because the mean of its divisors is an integer number (4131802).

Almost surely, 2^16487623 is an apocalyptic number.

16487623 is a deficient number, since it is larger than the sum of its proper divisors (39585).

16487623 is an equidigital number, since it uses as much as digits as its factorization.

16487623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39584.

The product of its digits is 48384, while the sum is 37.

The square root of 16487623 is about 4060.4954131239. The cubic root of 16487623 is about 254.5184967315.

The spelling of 16487623 in words is "sixteen million, four hundred eighty-seven thousand, six hundred twenty-three".