8684240957 has 24 divisors (see below), whose sum is σ = 10080847296. Its totient is φ = 7328313216.

The previous prime is 8684240941. The next prime is 8684240969. The reversal of 8684240957 is 7590424868.

It is not a de Polignac number, because 8684240957 - 2⁴ = 8684240941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8684240899 and 8684240908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8684240927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25026458 + ... + 25026804.

It is an arithmetic number, because the mean of its divisors is an integer number (420035304).

Almost surely, 2^8684240957 is an apocalyptic number.

It is an amenable number.

8684240957 is a deficient number, since it is larger than the sum of its proper divisors (1396606339).

8684240957 is a wasteful number, since it uses less digits than its factorization.

8684240957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 8684240957 is about 93189.2749032849. The cubic root of 8684240957 is about 2055.4675348672.

The spelling of 8684240957 in words is "eight billion, six hundred eighty-four million, two hundred forty thousand, nine hundred fifty-seven".