64622069 has 2 divisors, whose sum is σ = 64622070. Its totient is φ = 64622068.

The previous prime is 64622053. The next prime is 64622071. The reversal of 64622069 is 96022646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44488900 + 20133169 = 6670^2 + 4487^2 .

It is a cyclic number.

It is not a de Polignac number, because 64622069 - 2⁴ = 64622053 is a prime.

It is a super-2 number, since 2×64622069² = 8352023603681522, which contains 22 as substring.

Together with 64622071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64622969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32311034 + 32311035.

It is an arithmetic number, because the mean of its divisors is an integer number (32311035).

Almost surely, 2^64622069 is an apocalyptic number.

It is an amenable number.

64622069 is a deficient number, since it is larger than the sum of its proper divisors (1).

64622069 is an equidigital number, since it uses as much as digits as its factorization.

64622069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 64622069 is about 8038.7852938115. The cubic root of 64622069 is about 401.2918007196.

The spelling of 64622069 in words is "sixty-four million, six hundred twenty-two thousand, sixty-nine".