6459381 has 12 divisors (see below), whose sum is σ = 9364108. Its totient is φ = 4290624.

The previous prime is 6459361. The next prime is 6459391. The reversal of 6459381 is 1839546.

6459381 is a `hidden beast` number, since 64 + 593 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 656100 + 5803281 = 810^2 + 2409^2 .

It is not a de Polignac number, because 6459381 - 2⁶ = 6459317 is a prime.

It is a super-2 number, since 2×6459381² = 83447205806322, which contains 22 as substring.

It is a Duffinian number.

6459381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6459311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1671 + ... + 3963.

Almost surely, 2^6459381 is an apocalyptic number.

It is an amenable number.

6459381 is a deficient number, since it is larger than the sum of its proper divisors (2904727).

6459381 is a wasteful number, since it uses less digits than its factorization.

6459381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2609 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 6459381 is about 2541.5312313643. The cubic root of 6459381 is about 186.2359994281.

The spelling of 6459381 in words is "six million, four hundred fifty-nine thousand, three hundred eighty-one".