16723253 has 4 divisors (see below), whose sum is σ = 16751148. Its totient is φ = 16695360.

The previous prime is 16723243. The next prime is 16723261. The reversal of 16723253 is 35232761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4765489 + 11957764 = 2183^2 + 3458^2 .

It is a cyclic number.

It is not a de Polignac number, because 16723253 - 2⁸ = 16722997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16723243) 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, 13028 + ... + 14253.

It is an arithmetic number, because the mean of its divisors is an integer number (4187787).

Almost surely, 2^16723253 is an apocalyptic number.

It is an amenable number.

16723253 is a deficient number, since it is larger than the sum of its proper divisors (27895).

16723253 is an equidigital number, since it uses as much as digits as its factorization.

16723253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27894.

The product of its digits is 7560, while the sum is 29.

The square root of 16723253 is about 4089.4074142839. The cubic root of 16723253 is about 255.7252351890.

The spelling of 16723253 in words is "sixteen million, seven hundred twenty-three thousand, two hundred fifty-three".