67342109 has 8 divisors (see below), whose sum is σ = 70298328. Its totient is φ = 64445760.

The previous prime is 67342103. The next prime is 67342159. The reversal of 67342109 is 90124376.

It can be written as a sum of positive squares in 4 ways, for example, as 52900 + 67289209 = 230^2 + 8203^2 .

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 67342109 - 2²⁰ = 66293533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67342103) 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, 12662 + ... + 17175.

It is an arithmetic number, because the mean of its divisors is an integer number (8787291).

Almost surely, 2^67342109 is an apocalyptic number.

It is an amenable number.

67342109 is a deficient number, since it is larger than the sum of its proper divisors (2956219).

67342109 is a wasteful number, since it uses less digits than its factorization.

67342109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29935.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 67342109 is about 8206.2237966071. The cubic root of 67342109 is about 406.8449264033.

The spelling of 67342109 in words is "sixty-seven million, three hundred forty-two thousand, one hundred nine".