6642361 has 4 divisors (see below), whose sum is σ = 7246224. Its totient is φ = 6038500.

The previous prime is 6642353. The next prime is 6642371. The reversal of 6642361 is 1632466.

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 6642361 - 2³ = 6642353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6642301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301915 + ... + 301936.

It is an arithmetic number, because the mean of its divisors is an integer number (1811556).

Almost surely, 2^6642361 is an apocalyptic number.

It is an amenable number.

6642361 is a deficient number, since it is larger than the sum of its proper divisors (603863).

6642361 is a wasteful number, since it uses less digits than its factorization.

6642361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603862.

The product of its digits is 5184, while the sum is 28.

The square root of 6642361 is about 2577.2778274761. The cubic root of 6642361 is about 187.9782021657.

It can be divided in two parts, 664 and 2361, that added together give a square (3025 = 55²).

The spelling of 6642361 in words is "six million, six hundred forty-two thousand, three hundred sixty-one".