7984986345 has 96 divisors (see below), whose sum is σ = 16547984640. Its totient is φ = 3642589440.

The previous prime is 7984986329. The next prime is 7984986349. The reversal of 7984986345 is 5436894897.

It is not a de Polignac number, because 7984986345 - 2⁴ = 7984986329 is a prime.

It is a super-3 number, since 3×7984986345³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (7984986349) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4173109 + ... + 4175021.

It is an arithmetic number, because the mean of its divisors is an integer number (172374840).

Almost surely, 2^7984986345 is an apocalyptic number.

It is an amenable number.

7984986345 is an abundant number, since it is smaller than the sum of its proper divisors (8562998295).

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

7984986345 is a wasteful number, since it uses less digits than its factorization.

7984986345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572 (or 2559 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The square root of 7984986345 is about 89358.7508025935. The cubic root of 7984986345 is about 1998.7480785932.

The spelling of 7984986345 in words is "seven billion, nine hundred eighty-four million, nine hundred eighty-six thousand, three hundred forty-five".