11907631 has 2 divisors, whose sum is σ = 11907632. Its totient is φ = 11907630.

The previous prime is 11907619. The next prime is 11907641. The reversal of 11907631 is 13670911.

It is a strong prime.

It is an emirp because it is prime and its reverse (13670911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11907631 - 2¹¹ = 11905583 is a prime.

It is a super-2 number, since 2×11907631² = 283583352064322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11907631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11907611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5953815 + 5953816.

It is an arithmetic number, because the mean of its divisors is an integer number (5953816).

Almost surely, 2^11907631 is an apocalyptic number.

11907631 is the 1845-th centered heptagonal number.

11907631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11907631 is an equidigital number, since it uses as much as digits as its factorization.

11907631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 11907631 is about 3450.7435430643. The cubic root of 11907631 is about 228.3539119867.

The spelling of 11907631 in words is "eleven million, nine hundred seven thousand, six hundred thirty-one".