64412197 has 2 divisors, whose sum is σ = 64412198. Its totient is φ = 64412196.

The previous prime is 64412177. The next prime is 64412281. The reversal of 64412197 is 79121446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38950081 + 25462116 = 6241^2 + 5046^2 .

It is a cyclic number.

It is not a de Polignac number, because 64412197 - 2¹⁹ = 63887909 is a prime.

It is a super-2 number, since 2×64412197² = 8297862244733618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64412177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32206098 + 32206099.

It is an arithmetic number, because the mean of its divisors is an integer number (32206099).

Almost surely, 2^64412197 is an apocalyptic number.

It is an amenable number.

64412197 is a deficient number, since it is larger than the sum of its proper divisors (1).

64412197 is an equidigital number, since it uses as much as digits as its factorization.

64412197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 64412197 is about 8025.7209644991. The cubic root of 64412197 is about 400.8569067163.

The spelling of 64412197 in words is "sixty-four million, four hundred twelve thousand, one hundred ninety-seven".