36287291 has 2 divisors, whose sum is σ = 36287292. Its totient is φ = 36287290.

The previous prime is 36287257. The next prime is 36287357. The reversal of 36287291 is 19278263.

It is a weak prime.

It is an emirp because it is prime and its reverse (19278263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36287291 - 2¹⁰ = 36286267 is a prime.

It is not a weakly prime, because it can be changed into another prime (36287221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18143645 + 18143646.

It is an arithmetic number, because the mean of its divisors is an integer number (18143646).

Almost surely, 2^36287291 is an apocalyptic number.

36287291 is a deficient number, since it is larger than the sum of its proper divisors (1).

36287291 is an equidigital number, since it uses as much as digits as its factorization.

36287291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 36287291 is about 6023.8933423493. The cubic root of 36287291 is about 331.0687449819.

Subtracting from 36287291 its reverse (19278263), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 36287291 in words is "thirty-six million, two hundred eighty-seven thousand, two hundred ninety-one".