78464164 has 27 divisors (see below), whose sum is σ = 141957963. Its totient is φ = 37947672.

The previous prime is 78464107. The next prime is 78464171. The reversal of 78464164 is 46146487.

The square root of 78464164 is 8858.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 761737 + ... + 761839.

Almost surely, 2^78464164 is an apocalyptic number.

78464164 is the 8858-th square number.

It is an amenable number.

78464164 is a deficient number, since it is larger than the sum of its proper divisors (63493799).

78464164 is a wasteful number, since it uses less digits than its factorization.

78464164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 148 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The cubic root of 78464164 is about 428.1117200420. Note that the first 3 decimals are identical.

The spelling of 78464164 in words is "seventy-eight million, four hundred sixty-four thousand, one hundred sixty-four".