11930643 has 6 divisors (see below), whose sum is σ = 17233164. Its totient is φ = 7953756.

The previous prime is 11930561. The next prime is 11930663. The reversal of 11930643 is 34603911.

11930643 is a `hidden beast` number, since 1 + 19 + 3 + 0 + 643 = 666.

It is not a de Polignac number, because 11930643 - 2¹⁶ = 11865107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11930663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 662805 + ... + 662822.

It is an arithmetic number, because the mean of its divisors is an integer number (2872194).

Almost surely, 2^11930643 is an apocalyptic number.

11930643 is a deficient number, since it is larger than the sum of its proper divisors (5302521).

11930643 is a wasteful number, since it uses less digits than its factorization.

11930643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325633 (or 1325630 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 11930643 is about 3454.0762875188. The cubic root of 11930643 is about 228.5009185228.

The spelling of 11930643 in words is "eleven million, nine hundred thirty thousand, six hundred forty-three".