67495745 has 4 divisors (see below), whose sum is σ = 80994900. Its totient is φ = 53996592.

The previous prime is 67495741. The next prime is 67495781. The reversal of 67495745 is 54759476.

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 12794929 + 54700816 = 3577^2 + 7396^2 .

It is a cyclic number.

It is not a de Polignac number, because 67495745 - 2² = 67495741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67495745.

It is not an unprimeable number, because it can be changed into a prime (67495741) by changing a digit.

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, 6749570 + ... + 6749579.

It is an arithmetic number, because the mean of its divisors is an integer number (20248725).

Almost surely, 2^67495745 is an apocalyptic number.

It is an amenable number.

67495745 is a deficient number, since it is larger than the sum of its proper divisors (13499155).

67495745 is a wasteful number, since it uses less digits than its factorization.

67495745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13499154.

The product of its digits is 1058400, while the sum is 47.

The square root of 67495745 is about 8215.5794074429. The cubic root of 67495745 is about 407.1540868673.

The spelling of 67495745 in words is "sixty-seven million, four hundred ninety-five thousand, seven hundred forty-five".