16315623 has 12 divisors (see below), whose sum is σ = 24807640. Its totient is φ = 10304496.

The previous prime is 16315613. The next prime is 16315643. The reversal of 16315623 is 32651361.

16315623 is a `hidden beast` number, since 1 + 6 + 31 + 5 + 623 = 666.

It is not a de Polignac number, because 16315623 - 2⁸ = 16315367 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 (16315613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47536 + ... + 47877.

Almost surely, 2^16315623 is an apocalyptic number.

16315623 is a deficient number, since it is larger than the sum of its proper divisors (8492017).

16315623 is a wasteful number, since it uses less digits than its factorization.

16315623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95438 (or 95435 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 16315623 is about 4039.2602045424. The cubic root of 16315623 is about 253.6303497315.

Adding to 16315623 its reverse (32651361), we get a palindrome (48966984).

The spelling of 16315623 in words is "sixteen million, three hundred fifteen thousand, six hundred twenty-three".