36348821 has 2 divisors, whose sum is σ = 36348822. Its totient is φ = 36348820.

The previous prime is 36348791. The next prime is 36348859. The reversal of 36348821 is 12884363.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36168196 + 180625 = 6014^2 + 425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36348821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36348421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18174410 + 18174411.

It is an arithmetic number, because the mean of its divisors is an integer number (18174411).

Almost surely, 2^36348821 is an apocalyptic number.

It is an amenable number.

36348821 is a deficient number, since it is larger than the sum of its proper divisors (1).

36348821 is an equidigital number, since it uses as much as digits as its factorization.

36348821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 36348821 is about 6028.9983413499. The cubic root of 36348821 is about 331.2557632319.

The spelling of 36348821 in words is "thirty-six million, three hundred forty-eight thousand, eight hundred twenty-one".