8240913 has 8 divisors (see below), whose sum is σ = 12208800. Its totient is φ = 5493924.

The previous prime is 8240909. The next prime is 8240929. The reversal of 8240913 is 3190428.

It is not a de Polignac number, because 8240913 - 2² = 8240909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 305219 = 8240913 / (8 + 2 + 4 + 0 + 9 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (8240963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152583 + ... + 152636.

It is an arithmetic number, because the mean of its divisors is an integer number (1526100).

Almost surely, 2^8240913 is an apocalyptic number.

It is an amenable number.

8240913 is a deficient number, since it is larger than the sum of its proper divisors (3967887).

8240913 is a wasteful number, since it uses less digits than its factorization.

8240913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305228 (or 305222 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 8240913 is about 2870.6990437871. The cubic root of 8240913 is about 201.9877864066.

Adding to 8240913 its product of nonzero digits (1728), we get a square (8242641 = 2871²).

The spelling of 8240913 in words is "eight million, two hundred forty thousand, nine hundred thirteen".