6468731 has 4 divisors (see below), whose sum is σ = 6474000. Its totient is φ = 6463464.

The previous prime is 6468697. The next prime is 6468767. The reversal of 6468731 is 1378646.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6468731 - 2⁶ = 6468667 is a prime.

It is a super-2 number, since 2×6468731² = 83688961500722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6468691 and 6468700.

It is not an unprimeable number, because it can be changed into a prime (6468031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290 + ... + 3608.

It is an arithmetic number, because the mean of its divisors is an integer number (1618500).

Almost surely, 2^6468731 is an apocalyptic number.

6468731 is a deficient number, since it is larger than the sum of its proper divisors (5269).

6468731 is a wasteful number, since it uses less digits than its factorization.

6468731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268.

The product of its digits is 24192, while the sum is 35.

The square root of 6468731 is about 2543.3700084730. The cubic root of 6468731 is about 186.3258154174.

The spelling of 6468731 in words is "six million, four hundred sixty-eight thousand, seven hundred thirty-one".