32421013 has 2 divisors, whose sum is σ = 32421014. Its totient is φ = 32421012.

The previous prime is 32420981. The next prime is 32421079. The reversal of 32421013 is 31012423.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21178404 + 11242609 = 4602^2 + 3353^2 .

It is a cyclic number.

It is not a de Polignac number, because 32421013 - 2⁵ = 32420981 is a prime.

It is a super-2 number, since 2×32421013² = 2102244167892338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32421083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16210506 + 16210507.

It is an arithmetic number, because the mean of its divisors is an integer number (16210507).

Almost surely, 2^32421013 is an apocalyptic number.

It is an amenable number.

32421013 is a deficient number, since it is larger than the sum of its proper divisors (1).

32421013 is an equidigital number, since it uses as much as digits as its factorization.

32421013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 32421013 is about 5693.9452930284. The cubic root of 32421013 is about 318.8664745170.

Adding to 32421013 its reverse (31012423), we get a palindrome (63433436).

The spelling of 32421013 in words is "thirty-two million, four hundred twenty-one thousand, thirteen".