16923349 has 4 divisors (see below), whose sum is σ = 16944736. Its totient is φ = 16901964.

The previous prime is 16923343. The next prime is 16923353. The reversal of 16923349 is 94332961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16923349 - 2³ = 16923341 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 (16923341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9459 + ... + 11104.

It is an arithmetic number, because the mean of its divisors is an integer number (4236184).

Almost surely, 2^16923349 is an apocalyptic number.

It is an amenable number.

16923349 is a deficient number, since it is larger than the sum of its proper divisors (21387).

16923349 is an equidigital number, since it uses as much as digits as its factorization.

16923349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21386.

The product of its digits is 34992, while the sum is 37.

The square root of 16923349 is about 4113.7998249793. The cubic root of 16923349 is about 256.7411232424.

It can be divided in two parts, 1692 and 3349, that added together give a square (5041 = 71²).

The spelling of 16923349 in words is "sixteen million, nine hundred twenty-three thousand, three hundred forty-nine".