9428641 has 2 divisors, whose sum is σ = 9428642. Its totient is φ = 9428640.

The previous prime is 9428633. The next prime is 9428669. The reversal of 9428641 is 1468249.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 2117025 = 2704^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 9428641 - 2³ = 9428633 is a prime.

It is a super-2 number, since 2×9428641² = 177798542213762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9428597 and 9428606.

It is not a weakly prime, because it can be changed into another prime (9428611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4714320 + 4714321.

It is an arithmetic number, because the mean of its divisors is an integer number (4714321).

Almost surely, 2^9428641 is an apocalyptic number.

It is an amenable number.

9428641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9428641 is an equidigital number, since it uses as much as digits as its factorization.

9428641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 9428641 is about 3070.6092229393. The cubic root of 9428641 is about 211.2595579397.

The spelling of 9428641 in words is "nine million, four hundred twenty-eight thousand, six hundred forty-one".