6744387 has 8 divisors (see below), whose sum is σ = 9684304. Its totient is φ = 4150368.

The previous prime is 6744383. The next prime is 6744389. The reversal of 6744387 is 7834476.

It is a happy number.

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

It is not a de Polignac number, because 6744387 - 2² = 6744383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 172933 = 6744387 / (6 + 7 + 4 + 4 + 3 + 8 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6744383) 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, 86428 + ... + 86505.

It is an arithmetic number, because the mean of its divisors is an integer number (1210538).

Almost surely, 2^6744387 is an apocalyptic number.

6744387 is a deficient number, since it is larger than the sum of its proper divisors (2939917).

6744387 is a wasteful number, since it uses less digits than its factorization.

6744387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172949.

The product of its digits is 112896, while the sum is 39.

The square root of 6744387 is about 2596.9957643400. The cubic root of 6744387 is about 188.9357582398.

The spelling of 6744387 in words is "six million, seven hundred forty-four thousand, three hundred eighty-seven".