64412987 has 2 divisors, whose sum is σ = 64412988. Its totient is φ = 64412986.

The previous prime is 64412981. The next prime is 64413043. The reversal of 64412987 is 78921446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64412987 - 2⁶ = 64412923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64412981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32206493 + 32206494.

It is an arithmetic number, because the mean of its divisors is an integer number (32206494).

Almost surely, 2^64412987 is an apocalyptic number.

64412987 is a deficient number, since it is larger than the sum of its proper divisors (1).

64412987 is an equidigital number, since it uses as much as digits as its factorization.

64412987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 64412987 is about 8025.7701811103. The cubic root of 64412987 is about 400.8585455139.

It can be divided in two parts, 644 and 12987, that added together give a palindrome (13631).

The spelling of 64412987 in words is "sixty-four million, four hundred twelve thousand, nine hundred eighty-seven".