686504413 has 8 divisors (see below), whose sum is σ = 785332800. Its totient is φ = 587865120.

The previous prime is 686504411. The next prime is 686504449. The reversal of 686504413 is 314405686.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 686504413 - 2¹ = 686504411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686504411) 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, 39403 + ... + 54088.

It is an arithmetic number, because the mean of its divisors is an integer number (98166600).

Almost surely, 2^686504413 is an apocalyptic number.

It is an amenable number.

686504413 is a deficient number, since it is larger than the sum of its proper divisors (98828387).

686504413 is a wasteful number, since it uses less digits than its factorization.

686504413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94547.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 686504413 is about 26201.2292268893. The cubic root of 686504413 is about 882.1608454213.

The spelling of 686504413 in words is "six hundred eighty-six million, five hundred four thousand, four hundred thirteen".