64432087 has 2 divisors, whose sum is σ = 64432088. Its totient is φ = 64432086.

The previous prime is 64432079. The next prime is 64432099. The reversal of 64432087 is 78023446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64432087 - 2³ = 64432079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64432007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32216043 + 32216044.

It is an arithmetic number, because the mean of its divisors is an integer number (32216044).

Almost surely, 2^64432087 is an apocalyptic number.

64432087 is a deficient number, since it is larger than the sum of its proper divisors (1).

64432087 is an equidigital number, since it uses as much as digits as its factorization.

64432087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 64432087 is about 8026.9600098667. The cubic root of 64432087 is about 400.8981629986.

The spelling of 64432087 in words is "sixty-four million, four hundred thirty-two thousand, eighty-seven".