11742637 has 2 divisors, whose sum is σ = 11742638. Its totient is φ = 11742636.

The previous prime is 11742629. The next prime is 11742641. The reversal of 11742637 is 73624711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6295081 + 5447556 = 2509^2 + 2334^2 .

It is an emirp because it is prime and its reverse (73624711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11742637 - 2³ = 11742629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11742599 and 11742608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11742617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5871318 + 5871319.

It is an arithmetic number, because the mean of its divisors is an integer number (5871319).

Almost surely, 2^11742637 is an apocalyptic number.

It is an amenable number.

11742637 is a deficient number, since it is larger than the sum of its proper divisors (1).

11742637 is an equidigital number, since it uses as much as digits as its factorization.

11742637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 11742637 is about 3426.7531279624. The cubic root of 11742637 is about 227.2943002407.

The spelling of 11742637 in words is "eleven million, seven hundred forty-two thousand, six hundred thirty-seven".