64123297 has 4 divisors (see below), whose sum is σ = 73283776. Its totient is φ = 54962820.

The previous prime is 64123291. The next prime is 64123307. The reversal of 64123297 is 79232146.

64123297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64123297 - 2³ = 64123289 is a prime.

It is a super-2 number, since 2×64123297² = 8223594436300418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64123291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4580229 + ... + 4580242.

It is an arithmetic number, because the mean of its divisors is an integer number (18320944).

Almost surely, 2^64123297 is an apocalyptic number.

It is an amenable number.

64123297 is a deficient number, since it is larger than the sum of its proper divisors (9160479).

64123297 is an equidigital number, since it uses as much as digits as its factorization.

64123297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160478.

The product of its digits is 18144, while the sum is 34.

The square root of 64123297 is about 8007.7023546083. The cubic root of 64123297 is about 400.2567039724.

The spelling of 64123297 in words is "sixty-four million, one hundred twenty-three thousand, two hundred ninety-seven".