17930949 has 8 divisors (see below), whose sum is σ = 23987040. Its totient is φ = 11914416.

The previous prime is 17930933. The next prime is 17930951. The reversal of 17930949 is 94903971.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 17930949 - 2⁴ = 17930933 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 17930949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17930909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8814 + ... + 10655.

It is an arithmetic number, because the mean of its divisors is an integer number (2998380).

Almost surely, 2^17930949 is an apocalyptic number.

It is an amenable number.

17930949 is a deficient number, since it is larger than the sum of its proper divisors (6056091).

17930949 is a wasteful number, since it uses less digits than its factorization.

17930949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19779.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 17930949 is about 4234.4951292923. The cubic root of 17930949 is about 261.7385899539.

The spelling of 17930949 in words is "seventeen million, nine hundred thirty thousand, nine hundred forty-nine".