36913631 has 2 divisors, whose sum is σ = 36913632. Its totient is φ = 36913630.

The previous prime is 36913627. The next prime is 36913633. The reversal of 36913631 is 13631963.

It is a strong prime.

It is an emirp because it is prime and its reverse (13631963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36913631 - 2² = 36913627 is a prime.

It is a super-2 number, since 2×36913631² = 2725232307208322, which contains 22 as substring.

Together with 36913633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36913633) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18456815 + 18456816.

It is an arithmetic number, because the mean of its divisors is an integer number (18456816).

Almost surely, 2^36913631 is an apocalyptic number.

36913631 is a deficient number, since it is larger than the sum of its proper divisors (1).

36913631 is an equidigital number, since it uses as much as digits as its factorization.

36913631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 32.

The square root of 36913631 is about 6075.6588943093. The cubic root of 36913631 is about 332.9627032750.

The spelling of 36913631 in words is "thirty-six million, nine hundred thirteen thousand, six hundred thirty-one".