32813861 has 2 divisors, whose sum is σ = 32813862. Its totient is φ = 32813860.

The previous prime is 32813771. The next prime is 32813863. The reversal of 32813861 is 16831823.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16564900 + 16248961 = 4070^2 + 4031^2 .

It is a cyclic number.

It is not a de Polignac number, because 32813861 - 2¹⁰ = 32812837 is a prime.

Together with 32813863, 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 (32813863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16406930 + 16406931.

It is an arithmetic number, because the mean of its divisors is an integer number (16406931).

Almost surely, 2^32813861 is an apocalyptic number.

It is an amenable number.

32813861 is a deficient number, since it is larger than the sum of its proper divisors (1).

32813861 is an equidigital number, since it uses as much as digits as its factorization.

32813861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 32813861 is about 5728.3384152824. The cubic root of 32813861 is about 320.1492175177.

The spelling of 32813861 in words is "thirty-two million, eight hundred thirteen thousand, eight hundred sixty-one".