17980704 has 120 divisors (see below), whose sum is σ = 60496128. Its totient is φ = 5132160.

The previous prime is 17980661. The next prime is 17980709. The reversal of 17980704 is 40708971.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (17980709) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17649 + ... + 18639.

Almost surely, 2^17980704 is an apocalyptic number.

17980704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17980704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30248064).

17980704 is an abundant number, since it is smaller than the sum of its proper divisors (42515424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17980704 is an equidigital number, since it uses as much as digits as its factorization.

17980704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 17980704 is about 4240.3660219373. The cubic root of 17980704 is about 261.9804581116.

The spelling of 17980704 in words is "seventeen million, nine hundred eighty thousand, seven hundred four".