78934061 has 16 divisors (see below), whose sum is σ = 84505008. Its totient is φ = 73612800.

The previous prime is 78934039. The next prime is 78934067. The reversal of 78934061 is 16043987.

It can be written as a sum of positive squares in 8 ways, for example, as 27237961 + 51696100 = 5219^2 + 7190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78934061 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78934067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92111 + ... + 92963.

It is an arithmetic number, because the mean of its divisors is an integer number (5281563).

Almost surely, 2^78934061 is an apocalyptic number.

It is an amenable number.

78934061 is a deficient number, since it is larger than the sum of its proper divisors (5570947).

78934061 is a wasteful number, since it uses less digits than its factorization.

78934061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 78934061 is about 8884.4842844140. The cubic root of 78934061 is about 428.9646281531.

The spelling of 78934061 in words is "seventy-eight million, nine hundred thirty-four thousand, sixty-one".