16700389 has 4 divisors (see below), whose sum is σ = 16754400. Its totient is φ = 16646380.

The previous prime is 16700371. The next prime is 16700401. The reversal of 16700389 is 98300761.

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 16700389 - 2⁷ = 16700261 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 (16700309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26539 + ... + 27160.

It is an arithmetic number, because the mean of its divisors is an integer number (4188600).

Almost surely, 2^16700389 is an apocalyptic number.

It is an amenable number.

16700389 is a deficient number, since it is larger than the sum of its proper divisors (54011).

16700389 is an equidigital number, since it uses as much as digits as its factorization.

16700389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54010.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 16700389 is about 4086.6109430676. The cubic root of 16700389 is about 255.6086396832.

The spelling of 16700389 in words is "sixteen million, seven hundred thousand, three hundred eighty-nine".