686325945 has 16 divisors (see below), whose sum is σ = 1116124992. Its totient is φ = 360039360.

The previous prime is 686325943. The next prime is 686325979. The reversal of 686325945 is 549523686.

It is not a de Polignac number, because 686325945 - 2¹ = 686325943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 686325894 and 686325903.

It is not an unprimeable number, because it can be changed into a prime (686325943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374127 + ... + 375956.

It is an arithmetic number, because the mean of its divisors is an integer number (69757812).

Almost surely, 2^686325945 is an apocalyptic number.

It is an amenable number.

686325945 is a deficient number, since it is larger than the sum of its proper divisors (429799047).

686325945 is a wasteful number, since it uses less digits than its factorization.

686325945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750152.

The product of its digits is 1555200, while the sum is 48.

The square root of 686325945 is about 26197.8232874413. The cubic root of 686325945 is about 882.0843947709.

The spelling of 686325945 in words is "six hundred eighty-six million, three hundred twenty-five thousand, nine hundred forty-five".