5400685 has 4 divisors (see below), whose sum is σ = 6480828. Its totient is φ = 4320544.

The previous prime is 5400673. The next prime is 5400701. The reversal of 5400685 is 5860045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5860045 = 5 ⋅1172009.

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 3602404 = 1341^2 + 1898^2 .

It is a cyclic number.

It is not a de Polignac number, because 5400685 - 2¹³ = 5392493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540064 + ... + 540073.

It is an arithmetic number, because the mean of its divisors is an integer number (1620207).

Almost surely, 2^5400685 is an apocalyptic number.

It is an amenable number.

5400685 is a deficient number, since it is larger than the sum of its proper divisors (1080143).

5400685 is a wasteful number, since it uses less digits than its factorization.

5400685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080142.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 5400685 is about 2323.9373915835. The cubic root of 5400685 is about 175.4484823204.

The spelling of 5400685 in words is "five million, four hundred thousand, six hundred eighty-five".