632417609 has 2 divisors, whose sum is σ = 632417610. Its totient is φ = 632417608.

The previous prime is 632417581. The next prime is 632417627. The reversal of 632417609 is 906714236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 618616384 + 13801225 = 24872^2 + 3715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632417609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_32926583 and since 632417609 and 32926583 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (632417659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316208804 + 316208805.

It is an arithmetic number, because the mean of its divisors is an integer number (316208805).

Almost surely, 2^632417609 is an apocalyptic number.

It is an amenable number.

632417609 is a deficient number, since it is larger than the sum of its proper divisors (1).

632417609 is an equidigital number, since it uses as much as digits as its factorization.

632417609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 632417609 is about 25147.9146053902. The cubic root of 632417609 is about 858.3570620979.

The spelling of 632417609 in words is "six hundred thirty-two million, four hundred seventeen thousand, six hundred nine".