6681492 has 36 divisors (see below), whose sum is σ = 17437056. Its totient is φ = 2154960.

The previous prime is 6681491. The next prime is 6681511. The reversal of 6681492 is 2941866.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681491) 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 11 ways as a sum of consecutive naturals, for example, 1878 + ... + 4109.

Almost surely, 2^6681492 is an apocalyptic number.

6681492 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6681492 is an abundant number, since it is smaller than the sum of its proper divisors (10755564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6681492 is a wasteful number, since it uses less digits than its factorization.

6681492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028 (or 6023 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 6681492 is about 2584.8582166146. The cubic root of 6681492 is about 188.3466142165.

The spelling of 6681492 in words is "six million, six hundred eighty-one thousand, four hundred ninety-two".