67964071 has 4 divisors (see below), whose sum is σ = 77673232. Its totient is φ = 58254912.

The previous prime is 67964069. The next prime is 67964077. The reversal of 67964071 is 17046976.

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

It is a cyclic number.

It is not a de Polignac number, because 67964071 - 2¹ = 67964069 is a prime.

It is a super-2 number, since 2×67964071² = 9238229893786082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67964077) 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, 4854570 + ... + 4854583.

It is an arithmetic number, because the mean of its divisors is an integer number (19418308).

Almost surely, 2^67964071 is an apocalyptic number.

67964071 is a deficient number, since it is larger than the sum of its proper divisors (9709161).

67964071 is an equidigital number, since it uses as much as digits as its factorization.

67964071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9709160.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 67964071 is about 8244.0324477770. The cubic root of 67964071 is about 408.0936103770.

The spelling of 67964071 in words is "sixty-seven million, nine hundred sixty-four thousand, seventy-one".