6747121 has 4 divisors (see below), whose sum is σ = 6777072. Its totient is φ = 6717172.

The previous prime is 6747107. The next prime is 6747127. The reversal of 6747121 is 1217476.

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 6747121 - 2⁹ = 6746609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6747121.

It is not an unprimeable number, because it can be changed into a prime (6747127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14635 + ... + 15088.

It is an arithmetic number, because the mean of its divisors is an integer number (1694268).

Almost surely, 2^6747121 is an apocalyptic number.

It is an amenable number.

6747121 is a deficient number, since it is larger than the sum of its proper divisors (29951).

6747121 is a wasteful number, since it uses less digits than its factorization.

6747121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29950.

The product of its digits is 2352, while the sum is 28.

The square root of 6747121 is about 2597.5220884528. The cubic root of 6747121 is about 188.9612846803.

The spelling of 6747121 in words is "six million, seven hundred forty-seven thousand, one hundred twenty-one".