786340 has 12 divisors (see below), whose sum is σ = 1651356. Its totient is φ = 314528.

The previous prime is 786337. The next prime is 786349. The reversal of 786340 is 43687.

It can be written as a sum of positive squares in 2 ways, for example, as 481636 + 304704 = 694^2 + 552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 786299 and 786308.

It is not an unprimeable number, because it can be changed into a prime (786349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19639 + ... + 19678.

It is an arithmetic number, because the mean of its divisors is an integer number (137613).

2⁷⁸⁶³⁴⁰ is an apocalyptic number.

It is an amenable number.

786340 is an abundant number, since it is smaller than the sum of its proper divisors (865016).

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

786340 is a wasteful number, since it uses less digits than its factorization.

786340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39326 (or 39324 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 786340 is about 886.7581406449. The cubic root of 786340 is about 92.3003729951.

The spelling of 786340 in words is "seven hundred eighty-six thousand, three hundred forty".