5423665 has 16 divisors (see below), whose sum is σ = 7063056. Its totient is φ = 3974400.

The previous prime is 5423657. The next prime is 5423669. The reversal of 5423665 is 5663245.

It can be written as a sum of positive squares in 8 ways, for example, as 2241009 + 3182656 = 1497^2 + 1784^2 .

It is not a de Polignac number, because 5423665 - 2³ = 5423657 is a prime.

It is a super-2 number, since 2×5423665² = 58832284064450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5423669) 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, 11535 + ... + 11995.

It is an arithmetic number, because the mean of its divisors is an integer number (441441).

Almost surely, 2^5423665 is an apocalyptic number.

It is an amenable number.

5423665 is a deficient number, since it is larger than the sum of its proper divisors (1639391).

5423665 is a wasteful number, since it uses less digits than its factorization.

5423665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its digits is 21600, while the sum is 31.

The square root of 5423665 is about 2328.8763384946. The cubic root of 5423665 is about 175.6969755601.

The spelling of 5423665 in words is "five million, four hundred twenty-three thousand, six hundred sixty-five".