67797965 has 4 divisors (see below), whose sum is σ = 81357564. Its totient is φ = 54238368.

The previous prime is 67797959. The next prime is 67797973. The reversal of 67797965 is 56979776.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35010889 + 32787076 = 5917^2 + 5726^2 .

It is a cyclic number.

It is not a de Polignac number, because 67797965 - 2¹⁰ = 67796941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 67797965.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6779792 + ... + 6779801.

It is an arithmetic number, because the mean of its divisors is an integer number (20339391).

Almost surely, 2^67797965 is an apocalyptic number.

It is an amenable number.

67797965 is a deficient number, since it is larger than the sum of its proper divisors (13559599).

67797965 is a wasteful number, since it uses less digits than its factorization.

67797965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559598.

The product of its digits is 5000940, while the sum is 56.

The square root of 67797965 is about 8233.9519673119. The cubic root of 67797965 is about 407.7608752735.

The spelling of 67797965 in words is "sixty-seven million, seven hundred ninety-seven thousand, nine hundred sixty-five".