9642213 has 32 divisors (see below), whose sum is σ = 17291520. Its totient is φ = 5184000.

The previous prime is 9642211. The next prime is 9642223. The reversal of 9642213 is 3122469.

9642213 is a `hidden beast` number, since 9 + 642 + 2 + 13 = 666.

It is not a de Polignac number, because 9642213 - 2¹ = 9642211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9642211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1713 + ... + 4713.

It is an arithmetic number, because the mean of its divisors is an integer number (540360).

Almost surely, 2^9642213 is an apocalyptic number.

It is an amenable number.

9642213 is a deficient number, since it is larger than the sum of its proper divisors (7649307).

9642213 is a wasteful number, since it uses less digits than its factorization.

9642213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034 (or 3028 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 9642213 is about 3105.1912984549. The cubic root of 9642213 is about 212.8427722854.

The spelling of 9642213 in words is "nine million, six hundred forty-two thousand, two hundred thirteen".