11896631 has 2 divisors, whose sum is σ = 11896632. Its totient is φ = 11896630.

The previous prime is 11896613. The next prime is 11896637. The reversal of 11896631 is 13669811.

Together with previous prime (11896613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13669811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11896631 - 2⁶ = 11896567 is a prime.

It is a super-2 number, since 2×11896631² = 283059658300322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11896591 and 11896600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11896637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5948315 + 5948316.

It is an arithmetic number, because the mean of its divisors is an integer number (5948316).

Almost surely, 2^11896631 is an apocalyptic number.

11896631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11896631 is an equidigital number, since it uses as much as digits as its factorization.

11896631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 11896631 is about 3449.1493154110. The cubic root of 11896631 is about 228.2835742650.

The spelling of 11896631 in words is "eleven million, eight hundred ninety-six thousand, six hundred thirty-one".