78495378 has 16 divisors (see below), whose sum is σ = 169067136. Its totient is φ = 24152400.

The previous prime is 78495377. The next prime is 78495413. The reversal of 78495378 is 87359487.

It is a self number, because there is not a number n which added to its sum of digits gives 78495378.

It is not an unprimeable number, because it can be changed into a prime (78495371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503098 + ... + 503253.

It is an arithmetic number, because the mean of its divisors is an integer number (10566696).

Almost surely, 2^78495378 is an apocalyptic number.

78495378 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

78495378 is an abundant number, since it is smaller than the sum of its proper divisors (90571758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78495378 is a wasteful number, since it uses less digits than its factorization.

78495378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006369.

The product of its digits is 1693440, while the sum is 51.

The square root of 78495378 is about 8859.7617349452. The cubic root of 78495378 is about 428.1684818678.

The spelling of 78495378 in words is "seventy-eight million, four hundred ninety-five thousand, three hundred seventy-eight".