67964805 has 32 divisors (see below), whose sum is σ = 127190400. Its totient is φ = 34338816.

The previous prime is 67964801. The next prime is 67964807. The reversal of 67964805 is 50846976.

It is not a de Polignac number, because 67964805 - 2² = 67964801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67964801) 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 31 ways as a sum of consecutive naturals, for example, 10684 + ... + 15813.

It is an arithmetic number, because the mean of its divisors is an integer number (3974700).

Almost surely, 2^67964805 is an apocalyptic number.

It is an amenable number.

67964805 is a deficient number, since it is larger than the sum of its proper divisors (59225595).

67964805 is a wasteful number, since it uses less digits than its factorization.

67964805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26530 (or 26524 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 67964805 is about 8244.0769647062. The cubic root of 67964805 is about 408.0950794847.

The spelling of 67964805 in words is "sixty-seven million, nine hundred sixty-four thousand, eight hundred five".