6494681 has 4 divisors (see below), whose sum is σ = 6502272. Its totient is φ = 6487092.

The previous prime is 6494659. The next prime is 6494689. The reversal of 6494681 is 1864946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1864946 = 2 ⋅932473.

It is a cyclic number.

It is not a de Polignac number, because 6494681 - 2²² = 2300377 is a prime.

It is a super-2 number, since 2×6494681² = 84361762583522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6494689) 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, 2321 + ... + 4286.

It is an arithmetic number, because the mean of its divisors is an integer number (1625568).

Almost surely, 2^6494681 is an apocalyptic number.

It is an amenable number.

6494681 is a deficient number, since it is larger than the sum of its proper divisors (7591).

6494681 is an equidigital number, since it uses as much as digits as its factorization.

6494681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590.

The product of its digits is 41472, while the sum is 38.

The square root of 6494681 is about 2548.4664015835. The cubic root of 6494681 is about 186.5746382392.

The spelling of 6494681 in words is "six million, four hundred ninety-four thousand, six hundred eighty-one".