11893957 has 2 divisors, whose sum is σ = 11893958. Its totient is φ = 11893956.

The previous prime is 11893949. The next prime is 11893969. The reversal of 11893957 is 75939811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 564001 = 3366^2 + 751^2 .

It is an emirp because it is prime and its reverse (75939811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11893957 - 2³ = 11893949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11893927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5946978 + 5946979.

It is an arithmetic number, because the mean of its divisors is an integer number (5946979).

Almost surely, 2^11893957 is an apocalyptic number.

It is an amenable number.

11893957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11893957 is an equidigital number, since it uses as much as digits as its factorization.

11893957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 43.

The square root of 11893957 is about 3448.7616618143. The cubic root of 11893957 is about 228.2664692538.

The spelling of 11893957 in words is "eleven million, eight hundred ninety-three thousand, nine hundred fifty-seven".