64871383 has 2 divisors, whose sum is σ = 64871384. Its totient is φ = 64871382.

The previous prime is 64871341. The next prime is 64871423. The reversal of 64871383 is 38317846.

It is an a-pointer prime, because the next prime (64871423) can be obtained adding 64871383 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64871383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64871333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32435691 + 32435692.

It is an arithmetic number, because the mean of its divisors is an integer number (32435692).

Almost surely, 2^64871383 is an apocalyptic number.

64871383 is a deficient number, since it is larger than the sum of its proper divisors (1).

64871383 is an equidigital number, since it uses as much as digits as its factorization.

64871383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 64871383 is about 8054.2773108455. The cubic root of 64871383 is about 401.8072039879.

The spelling of 64871383 in words is "sixty-four million, eight hundred seventy-one thousand, three hundred eighty-three".