16700249 has 4 divisors (see below), whose sum is σ = 16865700. Its totient is φ = 16534800.

The previous prime is 16700207. The next prime is 16700251. The reversal of 16700249 is 94200761.

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 10843849 + 5856400 = 3293^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 16700249 - 2¹² = 16696153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16700149) 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, 82574 + ... + 82775.

It is an arithmetic number, because the mean of its divisors is an integer number (4216425).

Almost surely, 2^16700249 is an apocalyptic number.

It is an amenable number.

16700249 is a deficient number, since it is larger than the sum of its proper divisors (165451).

16700249 is a wasteful number, since it uses less digits than its factorization.

16700249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165450.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16700249 is about 4086.5938139238. The cubic root of 16700249 is about 255.6079254222.

The spelling of 16700249 in words is "sixteen million, seven hundred thousand, two hundred forty-nine".