67345345 has 4 divisors (see below), whose sum is σ = 80814420. Its totient is φ = 53876272.

The previous prime is 67345319. The next prime is 67345363. The reversal of 67345345 is 54354376.

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 53684929 + 13660416 = 7327^2 + 3696^2 .

It is a cyclic number.

It is not a de Polignac number, because 67345345 - 2¹⁵ = 67312577 is a prime.

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, 6734530 + ... + 6734539.

It is an arithmetic number, because the mean of its divisors is an integer number (20203605).

Almost surely, 2^67345345 is an apocalyptic number.

It is an amenable number.

67345345 is a deficient number, since it is larger than the sum of its proper divisors (13469075).

67345345 is a wasteful number, since it uses less digits than its factorization.

67345345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13469074.

The product of its digits is 151200, while the sum is 37.

The square root of 67345345 is about 8206.4209616617. The cubic root of 67345345 is about 406.8514430247.

The spelling of 67345345 in words is "sixty-seven million, three hundred forty-five thousand, three hundred forty-five".