16972445 has 8 divisors (see below), whose sum is σ = 23276544. Its totient is φ = 11638224.

The previous prime is 16972429. The next prime is 16972463. The reversal of 16972445 is 54427961.

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

It is a cyclic number.

It is not a de Polignac number, because 16972445 - 2⁴ = 16972429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16972399 and 16972408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242429 + ... + 242498.

It is an arithmetic number, because the mean of its divisors is an integer number (2909568).

Almost surely, 2^16972445 is an apocalyptic number.

It is an amenable number.

16972445 is a deficient number, since it is larger than the sum of its proper divisors (6304099).

16972445 is an equidigital number, since it uses as much as digits as its factorization.

16972445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484939.

The product of its digits is 60480, while the sum is 38.

The square root of 16972445 is about 4119.7627358866. The cubic root of 16972445 is about 256.9891591061.

The spelling of 16972445 in words is "sixteen million, nine hundred seventy-two thousand, four hundred forty-five".