9654421 has 10 divisors (see below), whose sum is σ = 11265622. Its totient is φ = 8273160.

The previous prime is 9654397. The next prime is 9654433. The reversal of 9654421 is 1244569.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 3651921 = 2450^2 + 1911^2 .

It is not a de Polignac number, because 9654421 - 2¹³ = 9646229 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9654221) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 391 + ... + 4411.

Almost surely, 2^9654421 is an apocalyptic number.

It is an amenable number.

9654421 is a deficient number, since it is larger than the sum of its proper divisors (1611201).

9654421 is an frugal number, since it uses more digits than its factorization.

9654421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049 (or 4028 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 9654421 is about 3107.1564170476. The cubic root of 9654421 is about 212.9325611036.

The spelling of 9654421 in words is "nine million, six hundred fifty-four thousand, four hundred twenty-one".