5391685 has 16 divisors (see below), whose sum is σ = 7040880. Its totient is φ = 3939840.

The previous prime is 5391679. The next prime is 5391689. The reversal of 5391685 is 5861935.

It is a Cunningham number, because it is equal to 2322²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1387684 + 4004001 = 1178^2 + 2001^2 .

It is not a de Polignac number, because 5391685 - 2⁵ = 5391653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5391689) 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, 6705 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (440055).

Almost surely, 2^5391685 is an apocalyptic number.

It is an amenable number.

5391685 is a deficient number, since it is larger than the sum of its proper divisors (1649195).

5391685 is a wasteful number, since it uses less digits than its factorization.

5391685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its digits is 32400, while the sum is 37.

The square root of 5391685 is about 2322.0002153316. Note that the first 3 decimals coincide. The cubic root of 5391685 is about 175.3509691170.

The spelling of 5391685 in words is "five million, three hundred ninety-one thousand, six hundred eighty-five".