64089887 has 2 divisors, whose sum is σ = 64089888. Its totient is φ = 64089886.

The previous prime is 64089841. The next prime is 64089911. The reversal of 64089887 is 78898046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64089887 - 2¹⁶ = 64024351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64089827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32044943 + 32044944.

It is an arithmetic number, because the mean of its divisors is an integer number (32044944).

Almost surely, 2^64089887 is an apocalyptic number.

64089887 is a deficient number, since it is larger than the sum of its proper divisors (1).

64089887 is an equidigital number, since it uses as much as digits as its factorization.

64089887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 64089887 is about 8005.6159663077. The cubic root of 64089887 is about 400.1871769816.

The spelling of 64089887 in words is "sixty-four million, eighty-nine thousand, eight hundred eighty-seven".