67066814 has 4 divisors (see below), whose sum is σ = 100600224. Its totient is φ = 33533406.

The previous prime is 67066807. The next prime is 67066817. The reversal of 67066814 is 41866076.

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

It is a super-2 number, since 2×67066814² = 8995915080221192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67066817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16766702 + ... + 16766705.

It is an arithmetic number, because the mean of its divisors is an integer number (25150056).

Almost surely, 2^67066814 is an apocalyptic number.

67066814 is a deficient number, since it is larger than the sum of its proper divisors (33533410).

67066814 is a wasteful number, since it uses less digits than its factorization.

67066814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33533409.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 67066814 is about 8189.4330695110. The cubic root of 67066814 is about 406.2897742832.

The spelling of 67066814 in words is "sixty-seven million, sixty-six thousand, eight hundred fourteen".