78103016 has 8 divisors (see below), whose sum is σ = 146443170. Its totient is φ = 39051504.

The previous prime is 78102971. The next prime is 78103021. The reversal of 78103016 is 61030187.

It can be written as a sum of positive squares in only one way, i.e., 55502500 + 22600516 = 7450^2 + 4754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×78103016² = 12200162216592512, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4881431 + ... + 4881446.

Almost surely, 2^78103016 is an apocalyptic number.

It is an amenable number.

78103016 is a deficient number, since it is larger than the sum of its proper divisors (68340154).

78103016 is a wasteful number, since it uses less digits than its factorization.

78103016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9762883 (or 9762879 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 78103016 is about 8837.5910744954. The cubic root of 78103016 is about 427.4538846555.

The spelling of 78103016 in words is "seventy-eight million, one hundred three thousand, sixteen".