18796947 has 16 divisors (see below), whose sum is σ = 28412160. Its totient is φ = 10958112.

The previous prime is 18796937. The next prime is 18796949. The reversal of 18796947 is 74969781.

It is not a de Polignac number, because 18796947 - 2¹⁰ = 18795923 is a prime.

It is a super-4 number, since 4×18796947⁴ (a number of 30 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18796947.

It is not an unprimeable number, because it can be changed into a prime (18796949) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11943 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (1775760).

Almost surely, 2^18796947 is an apocalyptic number.

18796947 is a deficient number, since it is larger than the sum of its proper divisors (9615213).

18796947 is a wasteful number, since it uses less digits than its factorization.

18796947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25402.

The product of its digits is 762048, while the sum is 51.

The square root of 18796947 is about 4335.5446024692. The cubic root of 18796947 is about 265.8861847488.

The spelling of 18796947 in words is "eighteen million, seven hundred ninety-six thousand, nine hundred forty-seven".