67066369 has 4 divisors (see below), whose sum is σ = 68626096. Its totient is φ = 65506644.

The previous prime is 67066327. The next prime is 67066379. The reversal of 67066369 is 96366076.

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 67066369 - 2⁹ = 67065857 is a prime.

It is a super-2 number, since 2×67066369² = 8995795701688322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1559683 = 67066369 / (6 + 7 + 0 + 6 + 6 + 3 + 6 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67066379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779799 + ... + 779884.

It is an arithmetic number, because the mean of its divisors is an integer number (17156524).

Almost surely, 2^67066369 is an apocalyptic number.

It is an amenable number.

67066369 is a deficient number, since it is larger than the sum of its proper divisors (1559727).

67066369 is a wasteful number, since it uses less digits than its factorization.

67066369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559726.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 67066369 is about 8189.4059003080. The cubic root of 67066369 is about 406.2888756801.

The spelling of 67066369 in words is "sixty-seven million, sixty-six thousand, three hundred sixty-nine".