78108652 has 6 divisors (see below), whose sum is σ = 136690148. Its totient is φ = 39054324.

The previous prime is 78108647. The next prime is 78108671. The reversal of 78108652 is 25680187.

It is a super-2 number, since 2×78108652² = 12201923034514208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9763578 + ... + 9763585.

Almost surely, 2^78108652 is an apocalyptic number.

It is an amenable number.

78108652 is a deficient number, since it is larger than the sum of its proper divisors (58581496).

78108652 is a wasteful number, since it uses less digits than its factorization.

78108652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19527167 (or 19527165 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 78108652 is about 8837.9099339154. The cubic root of 78108652 is about 427.4641662565.

The spelling of 78108652 in words is "seventy-eight million, one hundred eight thousand, six hundred fifty-two".