32671391 has 2 divisors, whose sum is σ = 32671392. Its totient is φ = 32671390.

The previous prime is 32671367. The next prime is 32671403. The reversal of 32671391 is 19317623.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32671391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32671321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16335695 + 16335696.

It is an arithmetic number, because the mean of its divisors is an integer number (16335696).

Almost surely, 2^32671391 is an apocalyptic number.

32671391 is a deficient number, since it is larger than the sum of its proper divisors (1).

32671391 is an equidigital number, since it uses as much as digits as its factorization.

32671391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 32671391 is about 5715.8893446252. The cubic root of 32671391 is about 319.6852080109.

It can be divided in two parts, 326 and 71391, that added together give a palindrome (71717).

The spelling of 32671391 in words is "thirty-two million, six hundred seventy-one thousand, three hundred ninety-one".