8971420416 has 72 divisors (see below), whose sum is σ = 27288086784. Its totient is φ = 2563261440.

The previous prime is 8971420391. The next prime is 8971420439. The reversal of 8971420416 is 6140241798.

It is a super-2 number, since 2×8971420416² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829020 + ... + 839771.

Almost surely, 2^8971420416 is an apocalyptic number.

It is an amenable number.

8971420416 is an abundant number, since it is smaller than the sum of its proper divisors (18316666368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8971420416 is a wasteful number, since it uses less digits than its factorization.

8971420416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668817 (or 1668803 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 8971420416 is about 94717.5824015795. The cubic root of 8971420416 is about 2077.8797131477.

The spelling of 8971420416 in words is "eight billion, nine hundred seventy-one million, four hundred twenty thousand, four hundred sixteen".