32420447 has 2 divisors, whose sum is σ = 32420448. Its totient is φ = 32420446.

The previous prime is 32420431. The next prime is 32420461. The reversal of 32420447 is 74402423.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32420447 - 2⁴ = 32420431 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32420417) 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 as a sum of consecutive naturals, namely, 16210223 + 16210224.

It is an arithmetic number, because the mean of its divisors is an integer number (16210224).

Almost surely, 2^32420447 is an apocalyptic number.

32420447 is a deficient number, since it is larger than the sum of its proper divisors (1).

32420447 is an equidigital number, since it uses as much as digits as its factorization.

32420447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 32420447 is about 5693.8955908938. The cubic root of 32420447 is about 318.8646189357.

The spelling of 32420447 in words is "thirty-two million, four hundred twenty thousand, four hundred forty-seven".