6407481 has 8 divisors (see below), whose sum is σ = 8623584. Its totient is φ = 4231520.

The previous prime is 6407461. The next prime is 6407491. The reversal of 6407481 is 1847046.

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 6407481 - 2⁵ = 6407449 is a prime.

It is a super-2 number, since 2×6407481² = 82111625530722, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6407431) 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 7 ways as a sum of consecutive naturals, for example, 9660 + ... + 10301.

It is an arithmetic number, because the mean of its divisors is an integer number (1077948).

Almost surely, 2^6407481 is an apocalyptic number.

It is an amenable number.

6407481 is a deficient number, since it is larger than the sum of its proper divisors (2216103).

6407481 is a wasteful number, since it uses less digits than its factorization.

6407481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20071.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 6407481 is about 2531.3002587603. The cubic root of 6407481 is about 185.7358662721.

The spelling of 6407481 in words is "six million, four hundred seven thousand, four hundred eighty-one".