16723633 has 4 divisors (see below), whose sum is σ = 17300340. Its totient is φ = 16146928.

The previous prime is 16723627. The next prime is 16723639. The reversal of 16723633 is 33632761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33632761 = 1021 ⋅32941.

It is an interprime number because it is at equal distance from previous prime (16723627) and next prime (16723639).

It can be written as a sum of positive squares in 2 ways, for example, as 3122289 + 13601344 = 1767^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 16723633 - 2²¹ = 14626481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16723595 and 16723604.

It is not an unprimeable number, because it can be changed into a prime (16723639) 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, 288310 + ... + 288367.

It is an arithmetic number, because the mean of its divisors is an integer number (4325085).

Almost surely, 2^16723633 is an apocalyptic number.

It is an amenable number.

16723633 is a deficient number, since it is larger than the sum of its proper divisors (576707).

16723633 is an equidigital number, since it uses as much as digits as its factorization.

16723633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576706.

The product of its digits is 13608, while the sum is 31.

The square root of 16723633 is about 4089.4538755193. The cubic root of 16723633 is about 255.7271721099.

The spelling of 16723633 in words is "sixteen million, seven hundred twenty-three thousand, six hundred thirty-three".