78948842 has 16 divisors (see below), whose sum is σ = 136252800. Its totient is φ = 33607248.

The previous prime is 78948841. The next prime is 78948851. The reversal of 78948842 is 24884987.

It is not an unprimeable number, because it can be changed into a prime (78948841) 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, 16838 + ... + 21009.

It is an arithmetic number, because the mean of its divisors is an integer number (8515800).

Almost surely, 2^78948842 is an apocalyptic number.

78948842 is a deficient number, since it is larger than the sum of its proper divisors (57303958).

78948842 is a wasteful number, since it uses less digits than its factorization.

78948842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38005.

The product of its digits is 1032192, while the sum is 50.

The square root of 78948842 is about 8885.3160889188. The cubic root of 78948842 is about 428.9914021058.

The spelling of 78948842 in words is "seventy-eight million, nine hundred forty-eight thousand, eight hundred forty-two".