6492981 has 24 divisors (see below), whose sum is σ = 9839872. Its totient is φ = 3801600.

The previous prime is 6492961. The next prime is 6492991. The reversal of 6492981 is 1892946.

6492981 = 169² + 170² + ... + 289².

6492981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6492981 - 2¹⁵ = 6460213 is a prime.

It is a super-2 number, since 2×6492981² = 84317604532722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6492911) 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 23 ways as a sum of consecutive naturals, for example, 10965 + ... + 11541.

Almost surely, 2^6492981 is an apocalyptic number.

It is an amenable number.

6492981 is a deficient number, since it is larger than the sum of its proper divisors (3346891).

6492981 is a wasteful number, since it uses less digits than its factorization.

6492981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 622 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 6492981 is about 2548.1328458305. The cubic root of 6492981 is about 186.5583580163.

The spelling of 6492981 in words is "six million, four hundred ninety-two thousand, nine hundred eighty-one".