7995421 has 16 divisors (see below), whose sum is σ = 9725184. Its totient is φ = 6424704.

The previous prime is 7995413. The next prime is 7995431. The reversal of 7995421 is 1245997.

7995421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7995421 - 2³ = 7995413 is a prime.

It is a super-3 number, since 3×7995421³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7995431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8065 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (607824).

Almost surely, 2^7995421 is an apocalyptic number.

It is an amenable number.

7995421 is a deficient number, since it is larger than the sum of its proper divisors (1729763).

7995421 is a wasteful number, since it uses less digits than its factorization.

7995421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 22680, while the sum is 37.

The square root of 7995421 is about 2827.6175483965. The cubic root of 7995421 is about 199.9618343841.

The spelling of 7995421 in words is "seven million, nine hundred ninety-five thousand, four hundred twenty-one".