32421617 has 2 divisors, whose sum is σ = 32421618. Its totient is φ = 32421616.

The previous prime is 32421593. The next prime is 32421643. The reversal of 32421617 is 71612423.

It is an a-pointer prime, because the next prime (32421643) can be obtained adding 32421617 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22429696 + 9991921 = 4736^2 + 3161^2 .

It is a cyclic number.

It is not a de Polignac number, because 32421617 - 2¹⁸ = 32159473 is a prime.

It is a super-2 number, since 2×32421617² = 2102322497789378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32421647) 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, 16210808 + 16210809.

It is an arithmetic number, because the mean of its divisors is an integer number (16210809).

Almost surely, 2^32421617 is an apocalyptic number.

It is an amenable number.

32421617 is a deficient number, since it is larger than the sum of its proper divisors (1).

32421617 is an equidigital number, since it uses as much as digits as its factorization.

32421617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 32421617 is about 5693.9983315769. The cubic root of 32421617 is about 318.8684546541.

The spelling of 32421617 in words is "thirty-two million, four hundred twenty-one thousand, six hundred seventeen".