32403313 has 4 divisors (see below), whose sum is σ = 32847268. Its totient is φ = 31959360.

The previous prime is 32403307. The next prime is 32403317. The reversal of 32403313 is 31330423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31330423 = 367 ⋅85369.

It can be written as a sum of positive squares in 2 ways, for example, as 25070049 + 7333264 = 5007^2 + 2708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32403313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32403317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221868 + ... + 222013.

It is an arithmetic number, because the mean of its divisors is an integer number (8211817).

Almost surely, 2^32403313 is an apocalyptic number.

It is an amenable number.

32403313 is a deficient number, since it is larger than the sum of its proper divisors (443955).

32403313 is an equidigital number, since it uses as much as digits as its factorization.

32403313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443954.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 32403313 is about 5692.3907982499. The cubic root of 32403313 is about 318.8084363963.

Adding to 32403313 its reverse (31330423), we get a palindrome (63733736).

The spelling of 32403313 in words is "thirty-two million, four hundred three thousand, three hundred thirteen".