64632041 has 2 divisors, whose sum is σ = 64632042. Its totient is φ = 64632040.

The previous prime is 64631999. The next prime is 64632059. The reversal of 64632041 is 14023646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60388441 + 4243600 = 7771^2 + 2060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64632041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64632041.

It is not a weakly prime, because it can be changed into another prime (64632541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32316020 + 32316021.

It is an arithmetic number, because the mean of its divisors is an integer number (32316021).

Almost surely, 2^64632041 is an apocalyptic number.

It is an amenable number.

64632041 is a deficient number, since it is larger than the sum of its proper divisors (1).

64632041 is an equidigital number, since it uses as much as digits as its factorization.

64632041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 64632041 is about 8039.4055128473. The cubic root of 64632041 is about 401.3124411193.

Adding to 64632041 its reverse (14023646), we get a palindrome (78655687).

The spelling of 64632041 in words is "sixty-four million, six hundred thirty-two thousand, forty-one".