17047990 has 8 divisors (see below), whose sum is σ = 30686400. Its totient is φ = 6819192.

The previous prime is 17047973. The next prime is 17047993. The reversal of 17047990 is 9974071.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17047993) 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, 852390 + ... + 852409.

It is an arithmetic number, because the mean of its divisors is an integer number (3835800).

Almost surely, 2^17047990 is an apocalyptic number.

17047990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17047990 is a deficient number, since it is larger than the sum of its proper divisors (13638410).

17047990 is a wasteful number, since it uses less digits than its factorization.

17047990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704806.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 17047990 is about 4128.9211666003. The cubic root of 17047990 is about 257.3698843056.

It can be divided in two parts, 170479 and 90, that added together give a square (170569 = 413²).

The spelling of 17047990 in words is "seventeen million, forty-seven thousand, nine hundred ninety".