32644427 has 2 divisors, whose sum is σ = 32644428. Its totient is φ = 32644426.

The previous prime is 32644421. The next prime is 32644453. The reversal of 32644427 is 72444623.

It is a weak prime.

It is an emirp because it is prime and its reverse (72444623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32644427 - 2⁴ = 32644411 is a prime.

It is a super-2 number, since 2×32644427² = 2131317228316658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32644393 and 32644402.

It is not a weakly prime, because it can be changed into another prime (32644421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16322213 + 16322214.

It is an arithmetic number, because the mean of its divisors is an integer number (16322214).

Almost surely, 2^32644427 is an apocalyptic number.

32644427 is a deficient number, since it is larger than the sum of its proper divisors (1).

32644427 is an equidigital number, since it uses as much as digits as its factorization.

32644427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 32.

The square root of 32644427 is about 5713.5301696937. The cubic root of 32644427 is about 319.5972374230.

The spelling of 32644427 in words is "thirty-two million, six hundred forty-four thousand, four hundred twenty-seven".