67854065 has 4 divisors (see below), whose sum is σ = 81424884. Its totient is φ = 54283248.

The previous prime is 67854053. The next prime is 67854079. The reversal of 67854065 is 56045876.

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 52519009 + 15335056 = 7247^2 + 3916^2 .

It is a cyclic number.

It is not a de Polignac number, because 67854065 - 2¹⁰ = 67853041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6785402 + ... + 6785411.

It is an arithmetic number, because the mean of its divisors is an integer number (20356221).

Almost surely, 2^67854065 is an apocalyptic number.

It is an amenable number.

67854065 is a deficient number, since it is larger than the sum of its proper divisors (13570819).

67854065 is a wasteful number, since it uses less digits than its factorization.

67854065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570818.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 67854065 is about 8237.3578895177. The cubic root of 67854065 is about 407.8733126626.

The spelling of 67854065 in words is "sixty-seven million, eight hundred fifty-four thousand, sixty-five".