32128693 has 2 divisors, whose sum is σ = 32128694. Its totient is φ = 32128692.

The previous prime is 32128673. The next prime is 32128703. The reversal of 32128693 is 39682123.

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., 16589329 + 15539364 = 4073^2 + 3942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32128693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32128673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16064346 + 16064347.

It is an arithmetic number, because the mean of its divisors is an integer number (16064347).

Almost surely, 2^32128693 is an apocalyptic number.

It is an amenable number.

32128693 is a deficient number, since it is larger than the sum of its proper divisors (1).

32128693 is an equidigital number, since it uses as much as digits as its factorization.

32128693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 32128693 is about 5668.2177975092. The cubic root of 32128693 is about 317.9052398851.

The spelling of 32128693 in words is "thirty-two million, one hundred twenty-eight thousand, six hundred ninety-three".