17972006 has 8 divisors (see below), whose sum is σ = 29031744. Its totient is φ = 8294760.

The previous prime is 17971997. The next prime is 17972023. The reversal of 17972006 is 60027971.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 345590 + ... + 345641.

It is an arithmetic number, because the mean of its divisors is an integer number (3628968).

Almost surely, 2^17972006 is an apocalyptic number.

17972006 is a deficient number, since it is larger than the sum of its proper divisors (11059738).

17972006 is a wasteful number, since it uses less digits than its factorization.

17972006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691246.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 17972006 is about 4239.3402788642. The cubic root of 17972006 is about 261.9382077534.

Adding to 17972006 its reverse (60027971), we get a palindrome (77999977).

The spelling of 17972006 in words is "seventeen million, nine hundred seventy-two thousand, six".