16935389 has 4 divisors (see below), whose sum is σ = 17188224. Its totient is φ = 16682556.

The previous prime is 16935379. The next prime is 16935407. The reversal of 16935389 is 98353961.

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 a de Polignac number, because none of the positive numbers 2^k-16935389 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 (16935379) 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, 126317 + ... + 126450.

It is an arithmetic number, because the mean of its divisors is an integer number (4297056).

Almost surely, 2^16935389 is an apocalyptic number.

It is an amenable number.

16935389 is a deficient number, since it is larger than the sum of its proper divisors (252835).

16935389 is an equidigital number, since it uses as much as digits as its factorization.

16935389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252834.

The product of its digits is 174960, while the sum is 44.

The square root of 16935389 is about 4115.2629320616. The cubic root of 16935389 is about 256.8019943767.

The spelling of 16935389 in words is "sixteen million, nine hundred thirty-five thousand, three hundred eighty-nine".