7941421 has 8 divisors (see below), whose sum is σ = 8273664. Its totient is φ = 7615440.

The previous prime is 7941419. The next prime is 7941457. The reversal of 7941421 is 1241497.

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

It is a cyclic number.

It is not a de Polignac number, because 7941421 - 2¹ = 7941419 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 7941421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7941481) 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 7 ways as a sum of consecutive naturals, for example, 1116 + ... + 4138.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 2^7941421 is an apocalyptic number.

7941421 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7941421 is a deficient number, since it is larger than the sum of its proper divisors (332243).

7941421 is a wasteful number, since it uses less digits than its factorization.

7941421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131.

The product of its digits is 2016, while the sum is 28.

The square root of 7941421 is about 2818.0526964555. The cubic root of 7941421 is about 199.5106453031.

The spelling of 7941421 in words is "seven million, nine hundred forty-one thousand, four hundred twenty-one".