9167421 has 4 divisors (see below), whose sum is σ = 12223232. Its totient is φ = 6111612.

The previous prime is 9167419. The next prime is 9167423. The reversal of 9167421 is 1247619.

It is a happy number.

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: 1247619 = 3 ⋅415873.

It is an interprime number because it is at equal distance from previous prime (9167419) and next prime (9167423).

It is not a de Polignac number, because 9167421 - 2¹ = 9167419 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 (9167423) 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, 1527901 + ... + 1527906.

It is an arithmetic number, because the mean of its divisors is an integer number (3055808).

Almost surely, 2^9167421 is an apocalyptic number.

It is an amenable number.

9167421 is a deficient number, since it is larger than the sum of its proper divisors (3055811).

9167421 is a wasteful number, since it uses less digits than its factorization.

9167421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055810.

The product of its digits is 3024, while the sum is 30.

The square root of 9167421 is about 3027.7749255848. The cubic root of 9167421 is about 209.2902798549.

The spelling of 9167421 in words is "nine million, one hundred sixty-seven thousand, four hundred twenty-one".