32928671393 has 4 divisors (see below), whose sum is σ = 33119010708. Its totient is φ = 32738332080.

The previous prime is 32928671389. The next prime is 32928671453. The reversal of 32928671393 is 39317682923.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39317682923 = 37 ⋅1062640079.

It can be written as a sum of positive squares in 2 ways, for example, as 14234398864 + 18694272529 = 119308^2 + 136727^2 .

It is a cyclic number.

It is not a de Polignac number, because 32928671393 - 2² = 32928671389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32928671333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95169398 + ... + 95169743.

It is an arithmetic number, because the mean of its divisors is an integer number (8279752677).

Almost surely, 2^32928671393 is an apocalyptic number.

It is an amenable number.

32928671393 is a deficient number, since it is larger than the sum of its proper divisors (190339315).

32928671393 is a wasteful number, since it uses less digits than its factorization.

32928671393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190339314.

The product of its digits is 2939328, while the sum is 53.

The spelling of 32928671393 in words is "thirty-two billion, nine hundred twenty-eight million, six hundred seventy-one thousand, three hundred ninety-three".