8240765 has 8 divisors (see below), whose sum is σ = 10649688. Its totient is φ = 6085440.

The previous prime is 8240759. The next prime is 8240779. The reversal of 8240765 is 5670428.

8240765 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 4 ways, for example, as 9604 + 8231161 = 98^2 + 2869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-8240765 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 63326 + ... + 63455.

It is an arithmetic number, because the mean of its divisors is an integer number (1331211).

Almost surely, 2^8240765 is an apocalyptic number.

It is an amenable number.

8240765 is a deficient number, since it is larger than the sum of its proper divisors (2408923).

8240765 is a wasteful number, since it uses less digits than its factorization.

8240765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126799.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 8240765 is about 2870.6732659779. The cubic root of 8240765 is about 201.9865772213.

The spelling of 8240765 in words is "eight million, two hundred forty thousand, seven hundred sixty-five".