11972393 has 2 divisors, whose sum is σ = 11972394. Its totient is φ = 11972392.

The previous prime is 11972377. The next prime is 11972407. The reversal of 11972393 is 39327911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11075584 + 896809 = 3328^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 11972393 - 2⁴ = 11972377 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11972333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5986196 + 5986197.

It is an arithmetic number, because the mean of its divisors is an integer number (5986197).

Almost surely, 2^11972393 is an apocalyptic number.

It is an amenable number.

11972393 is a deficient number, since it is larger than the sum of its proper divisors (1).

11972393 is an equidigital number, since it uses as much as digits as its factorization.

11972393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The square root of 11972393 is about 3460.1145934781. The cubic root of 11972393 is about 228.7671463353.

It can be divided in two parts, 1197 and 2393, that multiplied together give a triangular number (2864421 = T₂₃₉₃).

The spelling of 11972393 in words is "eleven million, nine hundred seventy-two thousand, three hundred ninety-three".