6431485 has 8 divisors (see below), whose sum is σ = 7741440. Its totient is φ = 5129424.

The previous prime is 6431483. The next prime is 6431501. The reversal of 6431485 is 5841346.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6431485 - 2¹ = 6431483 is a prime.

It is an Ulam number.

6431485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4 + ... + 3586.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^6431485 is an apocalyptic number.

It is an amenable number.

6431485 is a deficient number, since it is larger than the sum of its proper divisors (1309955).

6431485 is a wasteful number, since it uses less digits than its factorization.

6431485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947.

The product of its digits is 11520, while the sum is 31.

The square root of 6431485 is about 2536.0372631332. The cubic root of 6431485 is about 185.9675146566.

The spelling of 6431485 in words is "six million, four hundred thirty-one thousand, four hundred eighty-five".