64622071 has 2 divisors, whose sum is σ = 64622072. Its totient is φ = 64622070.

The previous prime is 64622069. The next prime is 64622093. The reversal of 64622071 is 17022646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64622071 - 2¹ = 64622069 is a prime.

Together with 64622069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64622171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32311035 + 32311036.

It is an arithmetic number, because the mean of its divisors is an integer number (32311036).

Almost surely, 2^64622071 is an apocalyptic number.

64622071 is a deficient number, since it is larger than the sum of its proper divisors (1).

64622071 is an equidigital number, since it uses as much as digits as its factorization.

64622071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 64622071 is about 8038.7854182084. The cubic root of 64622071 is about 401.2918048594.

The spelling of 64622071 in words is "sixty-four million, six hundred twenty-two thousand, seventy-one".