78007378 has 8 divisors (see below), whose sum is σ = 117456768. Its totient is φ = 38855124.

The previous prime is 78007367. The next prime is 78007393. The reversal of 78007378 is 87370087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78007378.

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 3 ways as a sum of consecutive naturals, for example, 73626 + ... + 74677.

It is an arithmetic number, because the mean of its divisors is an integer number (14682096).

Almost surely, 2^78007378 is an apocalyptic number.

78007378 is a deficient number, since it is larger than the sum of its proper divisors (39449390).

78007378 is a wasteful number, since it uses less digits than its factorization.

78007378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148568.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 78007378 is about 8832.1785534487. The cubic root of 78007378 is about 427.2793394014.

The spelling of 78007378 in words is "seventy-eight million, seven thousand, three hundred seventy-eight".