64371941 has 2 divisors, whose sum is σ = 64371942. Its totient is φ = 64371940.

The previous prime is 64371899. The next prime is 64371947. The reversal of 64371941 is 14917346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50836900 + 13535041 = 7130^2 + 3679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64371941 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64371947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32185970 + 32185971.

It is an arithmetic number, because the mean of its divisors is an integer number (32185971).

Almost surely, 2^64371941 is an apocalyptic number.

It is an amenable number.

64371941 is a deficient number, since it is larger than the sum of its proper divisors (1).

64371941 is an equidigital number, since it uses as much as digits as its factorization.

64371941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 64371941 is about 8023.2126358461. The cubic root of 64371941 is about 400.7733808249.

The spelling of 64371941 in words is "sixty-four million, three hundred seventy-one thousand, nine hundred forty-one".