78970346 has 64 divisors (see below), whose sum is σ = 157489920. Its totient is φ = 28823040.

The previous prime is 78970313. The next prime is 78970351. The reversal of 78970346 is 64307987.

78970346 is nontrivially palindromic in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 78970297 and 78970306.

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 in 31 ways as a sum of consecutive naturals, for example, 141500 + ... + 142056.

It is an arithmetic number, because the mean of its divisors is an integer number (2460780).

Almost surely, 2^78970346 is an apocalyptic number.

78970346 is a deficient number, since it is larger than the sum of its proper divisors (78519574).

78970346 is a wasteful number, since it uses less digits than its factorization.

78970346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 78970346 is about 8886.5260929117. The cubic root of 78970346 is about 429.0303479744.

The spelling of 78970346 in words is "seventy-eight million, nine hundred seventy thousand, three hundred forty-six".