6790421 has 4 divisors (see below), whose sum is σ = 7407744. Its totient is φ = 6173100.

The previous prime is 6790411. The next prime is 6790471. The reversal of 6790421 is 1240976.

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 6790421 - 2¹⁰ = 6789397 is a prime.

It is a super-2 number, since 2×6790421² = 92219634714482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6790411) 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, 308645 + ... + 308666.

It is an arithmetic number, because the mean of its divisors is an integer number (1851936).

Almost surely, 2^6790421 is an apocalyptic number.

It is an amenable number.

6790421 is a deficient number, since it is larger than the sum of its proper divisors (617323).

6790421 is a wasteful number, since it uses less digits than its factorization.

6790421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617322.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 6790421 is about 2605.8436253927. The cubic root of 6790421 is about 189.3646460009.

The spelling of 6790421 in words is "six million, seven hundred ninety thousand, four hundred twenty-one".