6475439 has 4 divisors (see below), whose sum is σ = 6698760. Its totient is φ = 6252120.

The previous prime is 6475387. The next prime is 6475457. The reversal of 6475439 is 9345746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9345746 = 2 ⋅4672873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6475439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6475459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111617 + ... + 111674.

It is an arithmetic number, because the mean of its divisors is an integer number (1674690).

Almost surely, 2^6475439 is an apocalyptic number.

6475439 is a deficient number, since it is larger than the sum of its proper divisors (223321).

6475439 is a wasteful number, since it uses less digits than its factorization.

6475439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223320.

The product of its digits is 90720, while the sum is 38.

The square root of 6475439 is about 2544.6883895676. The cubic root of 6475439 is about 186.3901990801.

The spelling of 6475439 in words is "six million, four hundred seventy-five thousand, four hundred thirty-nine".