64197067 has 8 divisors (see below), whose sum is σ = 73719360. Its totient is φ = 55289160.

The previous prime is 64197047. The next prime is 64197079. The reversal of 64197067 is 76079146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64197067 - 2¹⁹ = 63672779 is a prime.

It is a super-2 number, since 2×64197067² = 8242526822804978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64197047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153373 + ... + 153790.

It is an arithmetic number, because the mean of its divisors is an integer number (9214920).

Almost surely, 2^64197067 is an apocalyptic number.

64197067 is a deficient number, since it is larger than the sum of its proper divisors (9522293).

64197067 is a wasteful number, since it uses less digits than its factorization.

64197067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307193.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 64197067 is about 8012.3072207698. The cubic root of 64197067 is about 400.4101355783.

The spelling of 64197067 in words is "sixty-four million, one hundred ninety-seven thousand, sixty-seven".