67064745 has 32 divisors (see below), whose sum is σ = 123949440. Its totient is φ = 30602240.

The previous prime is 67064743. The next prime is 67064761. The reversal of 67064745 is 54746076.

It is not a de Polignac number, because 67064745 - 2¹ = 67064743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67064741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9150 + ... + 14759.

It is an arithmetic number, because the mean of its divisors is an integer number (3873420).

Almost surely, 2^67064745 is an apocalyptic number.

It is an amenable number.

67064745 is a deficient number, since it is larger than the sum of its proper divisors (56884695).

67064745 is a wasteful number, since it uses less digits than its factorization.

67064745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23945.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 67064745 is about 8189.3067472162. The cubic root of 67064745 is about 406.2855962497.

The spelling of 67064745 in words is "sixty-seven million, sixty-four thousand, seven hundred forty-five".