16723408 has 80 divisors (see below), whose sum is σ = 37403856. Its totient is φ = 7188480.

The previous prime is 16723397. The next prime is 16723409. The reversal of 16723408 is 80432761.

It can be written as a sum of positive squares in 8 ways, for example, as 304704 + 16418704 = 552^2 + 4052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16723408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16723409) 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, 315510 + ... + 315562.

Almost surely, 2^16723408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16723408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18701928).

16723408 is an abundant number, since it is smaller than the sum of its proper divisors (20680448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16723408 is a wasteful number, since it uses less digits than its factorization.

16723408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 16723408 is about 4089.4263656410. The cubic root of 16723408 is about 255.7260252524.

The spelling of 16723408 in words is "sixteen million, seven hundred twenty-three thousand, four hundred eight".