16346489 has 4 divisors (see below), whose sum is σ = 16788324. Its totient is φ = 15904656.

The previous prime is 16346437. The next prime is 16346507. The reversal of 16346489 is 98464361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98464361 = 751 ⋅131111.

It can be written as a sum of positive squares in 2 ways, for example, as 6786025 + 9560464 = 2605^2 + 3092^2 .

It is a cyclic number.

It is not a de Polignac number, because 16346489 - 2¹² = 16342393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16346089) 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, 220862 + ... + 220935.

It is an arithmetic number, because the mean of its divisors is an integer number (4197081).

Almost surely, 2^16346489 is an apocalyptic number.

It is an amenable number.

16346489 is a deficient number, since it is larger than the sum of its proper divisors (441835).

16346489 is an equidigital number, since it uses as much as digits as its factorization.

16346489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441834.

The product of its digits is 124416, while the sum is 41.

The square root of 16346489 is about 4043.0791483719. The cubic root of 16346489 is about 253.7901888185.

The spelling of 16346489 in words is "sixteen million, three hundred forty-six thousand, four hundred eighty-nine".