64183967 has 2 divisors, whose sum is σ = 64183968. Its totient is φ = 64183966.

The previous prime is 64183949. The next prime is 64183969. The reversal of 64183967 is 76938146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64183967 - 2⁸ = 64183711 is a prime.

Together with 64183969, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3795299 and since 64183967 and 3795299 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64183969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32091983 + 32091984.

It is an arithmetic number, because the mean of its divisors is an integer number (32091984).

Almost surely, 2^64183967 is an apocalyptic number.

64183967 is a deficient number, since it is larger than the sum of its proper divisors (1).

64183967 is an equidigital number, since it uses as much as digits as its factorization.

64183967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 64183967 is about 8011.4896866937. The cubic root of 64183967 is about 400.3828979393.

The spelling of 64183967 in words is "sixty-four million, one hundred eighty-three thousand, nine hundred sixty-seven".