5431665 has 16 divisors (see below), whose sum is σ = 8971776. Its totient is φ = 2803200.

The previous prime is 5431661. The next prime is 5431691. The reversal of 5431665 is 5661345.

It is not a de Polignac number, because 5431665 - 2² = 5431661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5431661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5376 + ... + 6305.

It is an arithmetic number, because the mean of its divisors is an integer number (560736).

Almost surely, 2^5431665 is an apocalyptic number.

It is an amenable number.

5431665 is a deficient number, since it is larger than the sum of its proper divisors (3540111).

5431665 is a wasteful number, since it uses less digits than its factorization.

5431665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11720.

The product of its digits is 10800, while the sum is 30.

The square root of 5431665 is about 2330.5932721091. The cubic root of 5431665 is about 175.7833184843.

The spelling of 5431665 in words is "five million, four hundred thirty-one thousand, six hundred sixty-five".