6742749 has 16 divisors (see below), whose sum is σ = 10104192. Its totient is φ = 3968448.

The previous prime is 6742733. The next prime is 6742753. The reversal of 6742749 is 9472476.

It is not a de Polignac number, because 6742749 - 2⁴ = 6742733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6742709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2862 + ... + 4655.

It is an arithmetic number, because the mean of its divisors is an integer number (631512).

Almost surely, 2^6742749 is an apocalyptic number.

6742749 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6742749 is a deficient number, since it is larger than the sum of its proper divisors (3361443).

6742749 is a wasteful number, since it uses less digits than its factorization.

6742749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its digits is 84672, while the sum is 39.

The square root of 6742749 is about 2596.6803807939. The cubic root of 6742749 is about 188.9204614788.

It can be divided in two parts, 67427 and 49, that added together give a palindrome (67476).

The spelling of 6742749 in words is "six million, seven hundred forty-two thousand, seven hundred forty-nine".