32819861 has 2 divisors, whose sum is σ = 32819862. Its totient is φ = 32819860.

The previous prime is 32819807. The next prime is 32819863. The reversal of 32819861 is 16891823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20702500 + 12117361 = 4550^2 + 3481^2 .

It is a cyclic number.

It is not a de Polignac number, because 32819861 - 2¹⁰ = 32818837 is a prime.

Together with 32819863, 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 (32819863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16409930 + 16409931.

It is an arithmetic number, because the mean of its divisors is an integer number (16409931).

Almost surely, 2^32819861 is an apocalyptic number.

It is an amenable number.

32819861 is a deficient number, since it is larger than the sum of its proper divisors (1).

32819861 is an equidigital number, since it uses as much as digits as its factorization.

32819861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 32819861 is about 5728.8621034198. The cubic root of 32819861 is about 320.1687293762.

The spelling of 32819861 in words is "thirty-two million, eight hundred nineteen thousand, eight hundred sixty-one".