6493749 has 4 divisors (see below), whose sum is σ = 8658336. Its totient is φ = 4329164.

The previous prime is 6493741. The next prime is 6493769. The reversal of 6493749 is 9473946.

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.

It is a cyclic number.

It is not a de Polignac number, because 6493749 - 2³ = 6493741 is a prime.

It is a D-number.

6493749 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6493749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6493741) 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 3 ways as a sum of consecutive naturals, for example, 1082289 + ... + 1082294.

It is an arithmetic number, because the mean of its divisors is an integer number (2164584).

Almost surely, 2^6493749 is an apocalyptic number.

It is an amenable number.

6493749 is a deficient number, since it is larger than the sum of its proper divisors (2164587).

6493749 is a wasteful number, since it uses less digits than its factorization.

6493749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164586.

The product of its digits is 163296, while the sum is 42.

The square root of 6493749 is about 2548.2835399539. The cubic root of 6493749 is about 186.5657131983.

The spelling of 6493749 in words is "six million, four hundred ninety-three thousand, seven hundred forty-nine".