32632421 has 2 divisors, whose sum is σ = 32632422. Its totient is φ = 32632420.

The previous prime is 32632403. The next prime is 32632477. The reversal of 32632421 is 12423623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32615521 + 16900 = 5711^2 + 130^2 .

It is an emirp because it is prime and its reverse (12423623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32632421 - 2¹⁰ = 32631397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32634421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16316210 + 16316211.

It is an arithmetic number, because the mean of its divisors is an integer number (16316211).

Almost surely, 2^32632421 is an apocalyptic number.

It is an amenable number.

32632421 is a deficient number, since it is larger than the sum of its proper divisors (1).

32632421 is an equidigital number, since it uses as much as digits as its factorization.

32632421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 32632421 is about 5712.4794091533. The cubic root of 32632421 is about 319.5580520216.

The spelling of 32632421 in words is "thirty-two million, six hundred thirty-two thousand, four hundred twenty-one".