8747997478 has 8 divisors (see below), whose sum is σ = 14314905000. Its totient is φ = 3976362480.

The previous prime is 8747997463. The next prime is 8747997481.

8747997478 is nontrivially palindromic in base 10.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198818103 + ... + 198818146.

It is an arithmetic number, because the mean of its divisors is an integer number (1789363125).

Almost surely, 2^8747997478 is an apocalyptic number.

8747997478 is a deficient number, since it is larger than the sum of its proper divisors (5566907522).

8747997478 is a wasteful number, since it uses less digits than its factorization.

8747997478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397636262.

The product of its digits is 199148544, while the sum is 70.

The square root of 8747997478 is about 93530.7301265204. The cubic root of 8747997478 is about 2060.4854385871.

The spelling of 8747997478 in words is "eight billion, seven hundred forty-seven million, nine hundred ninety-seven thousand, four hundred seventy-eight".