32536381 has 2 divisors, whose sum is σ = 32536382. Its totient is φ = 32536380.

The previous prime is 32536331. The next prime is 32536393. The reversal of 32536381 is 18363523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32319225 + 217156 = 5685^2 + 466^2 .

It is a cyclic number.

It is not a de Polignac number, because 32536381 - 2¹⁵ = 32503613 is a prime.

It is a super-3 number, since 3×32536381³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32536321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16268190 + 16268191.

It is an arithmetic number, because the mean of its divisors is an integer number (16268191).

Almost surely, 2^32536381 is an apocalyptic number.

It is an amenable number.

32536381 is a deficient number, since it is larger than the sum of its proper divisors (1).

32536381 is an equidigital number, since it uses as much as digits as its factorization.

32536381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 32536381 is about 5704.0670578106. The cubic root of 32536381 is about 319.2442484298.

The spelling of 32536381 in words is "thirty-two million, five hundred thirty-six thousand, three hundred eighty-one".