78930698 has 16 divisors (see below), whose sum is σ = 147610944. Its totient is φ = 30752160.

The previous prime is 78930689. The next prime is 78930701. The reversal of 78930698 is 89603987.

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 7 ways as a sum of consecutive naturals, for example, 256115 + ... + 256422.

It is an arithmetic number, because the mean of its divisors is an integer number (9225684).

Almost surely, 2^78930698 is an apocalyptic number.

78930698 is a deficient number, since it is larger than the sum of its proper divisors (68680246).

78930698 is a wasteful number, since it uses less digits than its factorization.

78930698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512557.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 78930698 is about 8884.2950198651. The cubic root of 78930698 is about 428.9585360280.

Subtracting 78930698 from its reverse (89603987), we obtain a square (10673289 = 3267²).

The spelling of 78930698 in words is "seventy-eight million, nine hundred thirty thousand, six hundred ninety-eight".