32047621 has 2 divisors, whose sum is σ = 32047622. Its totient is φ = 32047620.

The previous prime is 32047619. The next prime is 32047627. The reversal of 32047621 is 12674023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29582721 + 2464900 = 5439^2 + 1570^2 .

It is an emirp because it is prime and its reverse (12674023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32047621 - 2¹ = 32047619 is a prime.

Together with 32047619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32047627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16023810 + 16023811.

It is an arithmetic number, because the mean of its divisors is an integer number (16023811).

Almost surely, 2^32047621 is an apocalyptic number.

It is an amenable number.

32047621 is a deficient number, since it is larger than the sum of its proper divisors (1).

32047621 is an equidigital number, since it uses as much as digits as its factorization.

32047621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 32047621 is about 5661.0618261948. The cubic root of 32047621 is about 317.6376190563.

The spelling of 32047621 in words is "thirty-two million, forty-seven thousand, six hundred twenty-one".