9086421 has 4 divisors (see below), whose sum is σ = 12115232. Its totient is φ = 6057612.

The previous prime is 9086417. The next prime is 9086437. The reversal of 9086421 is 1246809.

9086421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1246809 = 3 ⋅415603.

It is not a de Polignac number, because 9086421 - 2² = 9086417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9086401) 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, 1514401 + ... + 1514406.

It is an arithmetic number, because the mean of its divisors is an integer number (3028808).

Almost surely, 2^9086421 is an apocalyptic number.

It is an amenable number.

9086421 is a deficient number, since it is larger than the sum of its proper divisors (3028811).

9086421 is a wasteful number, since it uses less digits than its factorization.

9086421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028810.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 9086421 is about 3014.3690882173. The cubic root of 9086421 is about 208.6720511675.

The spelling of 9086421 in words is "nine million, eighty-six thousand, four hundred twenty-one".