17664049 has 12 divisors (see below), whose sum is σ = 19301376. Its totient is φ = 16157232.

The previous prime is 17663993. The next prime is 17664061. The reversal of 17664049 is 94046671.

It is not a de Polignac number, because 17664049 - 2⁹ = 17663537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17663999 and 17664017.

It is not an unprimeable number, because it can be changed into a prime (17664089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21052 + ... + 21874.

It is an arithmetic number, because the mean of its divisors is an integer number (1608448).

Almost surely, 2^17664049 is an apocalyptic number.

It is an amenable number.

17664049 is a deficient number, since it is larger than the sum of its proper divisors (1637327).

17664049 is a wasteful number, since it uses less digits than its factorization.

17664049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 17664049 is about 4202.8620010655. The cubic root of 17664049 is about 260.4334436751.

The spelling of 17664049 in words is "seventeen million, six hundred sixty-four thousand, forty-nine".