9017421 has 12 divisors (see below), whose sum is σ = 13986432. Its totient is φ = 5152728.

The previous prime is 9017413. The next prime is 9017423. The reversal of 9017421 is 1247109.

It is not a de Polignac number, because 9017421 - 2³ = 9017413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9017391 and 9017400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9017423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30525 + ... + 30818.

It is an arithmetic number, because the mean of its divisors is an integer number (1165536).

Almost surely, 2^9017421 is an apocalyptic number.

It is an amenable number.

9017421 is a deficient number, since it is larger than the sum of its proper divisors (4969011).

9017421 is a wasteful number, since it uses less digits than its factorization.

9017421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61360 (or 61353 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 9017421 is about 3002.9020963062. The cubic root of 9017421 is about 208.1425074325.

The spelling of 9017421 in words is "nine million, seventeen thousand, four hundred twenty-one".