32391349 has 2 divisors, whose sum is σ = 32391350. Its totient is φ = 32391348.

The previous prime is 32391313. The next prime is 32391397. The reversal of 32391349 is 94319323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30195025 + 2196324 = 5495^2 + 1482^2 .

It is a cyclic number.

It is not a de Polignac number, because 32391349 - 2¹³ = 32383157 is a prime.

It is equal to p_1996441 and since 32391349 and 1996441 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32391449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16195674 + 16195675.

It is an arithmetic number, because the mean of its divisors is an integer number (16195675).

Almost surely, 2^32391349 is an apocalyptic number.

It is an amenable number.

32391349 is a deficient number, since it is larger than the sum of its proper divisors (1).

32391349 is an equidigital number, since it uses as much as digits as its factorization.

32391349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 34.

The square root of 32391349 is about 5691.3398246810. The cubic root of 32391349 is about 318.7691945893.

The spelling of 32391349 in words is "thirty-two million, three hundred ninety-one thousand, three hundred forty-nine".