78067741 has 4 divisors (see below), whose sum is σ = 78349852. Its totient is φ = 77785632.

The previous prime is 78067697. The next prime is 78067763. The reversal of 78067741 is 14776087.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19545241 + 58522500 = 4421^2 + 7650^2 .

It is a cyclic number.

It is not a de Polignac number, because 78067741 - 2¹³ = 78059549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78067694 and 78067703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78067771) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 140640 + ... + 141193.

It is an arithmetic number, because the mean of its divisors is an integer number (19587463).

Almost surely, 2^78067741 is an apocalyptic number.

It is an amenable number.

78067741 is a deficient number, since it is larger than the sum of its proper divisors (282111).

78067741 is a wasteful number, since it uses less digits than its factorization.

78067741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282110.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 78067741 is about 8835.5951129508. The cubic root of 78067741 is about 427.3895221969.

The spelling of 78067741 in words is "seventy-eight million, sixty-seven thousand, seven hundred forty-one".