6436749 has 8 divisors (see below), whose sum is σ = 9362592. Its totient is φ = 3901040.

The previous prime is 6436739. The next prime is 6436751. The reversal of 6436749 is 9476346.

6436749 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6436749 - 2⁹ = 6436237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6436709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97494 + ... + 97559.

It is an arithmetic number, because the mean of its divisors is an integer number (1170324).

Almost surely, 2^6436749 is an apocalyptic number.

It is an amenable number.

6436749 is a deficient number, since it is larger than the sum of its proper divisors (2925843).

6436749 is a wasteful number, since it uses less digits than its factorization.

6436749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195067.

The product of its digits is 108864, while the sum is 39.

The square root of 6436749 is about 2537.0748904989. The cubic root of 6436749 is about 186.0182373146.

The spelling of 6436749 in words is "six million, four hundred thirty-six thousand, seven hundred forty-nine".