36011621 has 2 divisors, whose sum is σ = 36011622. Its totient is φ = 36011620.

The previous prime is 36011617. The next prime is 36011639. The reversal of 36011621 is 12611063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25867396 + 10144225 = 5086^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 36011621 - 2² = 36011617 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 36011593 and 36011602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36011641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18005810 + 18005811.

It is an arithmetic number, because the mean of its divisors is an integer number (18005811).

Almost surely, 2^36011621 is an apocalyptic number.

It is an amenable number.

36011621 is a deficient number, since it is larger than the sum of its proper divisors (1).

36011621 is an equidigital number, since it uses as much as digits as its factorization.

36011621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 36011621 is about 6000.9683385267. The cubic root of 36011621 is about 330.2282504158.

Adding to 36011621 its reverse (12611063), we get a palindrome (48622684).

The spelling of 36011621 in words is "thirty-six million, eleven thousand, six hundred twenty-one".