78016833 has 12 divisors (see below), whose sum is σ = 112790548. Its totient is φ = 51965280.

The previous prime is 78016789. The next prime is 78016837. The reversal of 78016833 is 33861087.

It can be written as a sum of positive squares in 2 ways, for example, as 60652944 + 17363889 = 7788^2 + 4167^2 .

It is not a de Polignac number, because 78016833 - 2⁹ = 78016321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78016837) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9291 + ... + 15567.

Almost surely, 2^78016833 is an apocalyptic number.

It is an amenable number.

78016833 is a deficient number, since it is larger than the sum of its proper divisors (34773715).

78016833 is a wasteful number, since it uses less digits than its factorization.

78016833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664 (or 7661 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 78016833 is about 8832.7137958840. The cubic root of 78016833 is about 427.2966017127.

The spelling of 78016833 in words is "seventy-eight million, sixteen thousand, eight hundred thirty-three".