16498489 has 4 divisors (see below), whose sum is σ = 18855424. Its totient is φ = 14141556.

The previous prime is 16498463. The next prime is 16498501. The reversal of 16498489 is 98489461.

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 16498489 - 2⁹ = 16497977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16498459) 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, 1178457 + ... + 1178470.

It is an arithmetic number, because the mean of its divisors is an integer number (4713856).

Almost surely, 2^16498489 is an apocalyptic number.

It is an amenable number.

16498489 is a deficient number, since it is larger than the sum of its proper divisors (2356935).

16498489 is an equidigital number, since it uses as much as digits as its factorization.

16498489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356934.

The product of its digits is 497664, while the sum is 49.

The square root of 16498489 is about 4061.8332068168. The cubic root of 16498489 is about 254.5743970608.

The spelling of 16498489 in words is "sixteen million, four hundred ninety-eight thousand, four hundred eighty-nine".