78470846 has 16 divisors (see below), whose sum is σ = 120228624. Its totient is φ = 38398464.

The previous prime is 78470803. The next prime is 78470849. The reversal of 78470846 is 64807487.

It is a junction number, because it is equal to n+sod(n) for n = 78470797 and 78470806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78470849) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 60521 + ... + 61803.

It is an arithmetic number, because the mean of its divisors is an integer number (7514289).

Almost surely, 2^78470846 is an apocalyptic number.

78470846 is a deficient number, since it is larger than the sum of its proper divisors (41757778).

78470846 is a wasteful number, since it uses less digits than its factorization.

78470846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 78470846 is about 8858.3771651471. The cubic root of 78470846 is about 428.1238723468.

The spelling of 78470846 in words is "seventy-eight million, four hundred seventy thousand, eight hundred forty-six".