64835887 has 2 divisors, whose sum is σ = 64835888. Its totient is φ = 64835886.

The previous prime is 64835861. The next prime is 64835891. The reversal of 64835887 is 78853846.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64835887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64835887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64835857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32417943 + 32417944.

It is an arithmetic number, because the mean of its divisors is an integer number (32417944).

Almost surely, 2^64835887 is an apocalyptic number.

64835887 is a deficient number, since it is larger than the sum of its proper divisors (1).

64835887 is an equidigital number, since it uses as much as digits as its factorization.

64835887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 64835887 is about 8052.0734596748. The cubic root of 64835887 is about 401.7339043293.

The spelling of 64835887 in words is "sixty-four million, eight hundred thirty-five thousand, eight hundred eighty-seven".