17970947 has 8 divisors (see below), whose sum is σ = 18498480. Its totient is φ = 17448480.

The previous prime is 17970907. The next prime is 17970977. The reversal of 17970947 is 74907971.

It is a happy number.

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 17970947 - 2¹⁶ = 17905411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17970898 and 17970907.

It is not an unprimeable number, because it can be changed into a prime (17970907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6629 + ... + 8937.

It is an arithmetic number, because the mean of its divisors is an integer number (2312310).

Almost surely, 2^17970947 is an apocalyptic number.

17970947 is a deficient number, since it is larger than the sum of its proper divisors (527533).

17970947 is a wasteful number, since it uses less digits than its factorization.

17970947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 17970947 is about 4239.2153755147. The cubic root of 17970947 is about 261.9330627515.

The spelling of 17970947 in words is "seventeen million, nine hundred seventy thousand, nine hundred forty-seven".