78060961 has 4 divisors (see below), whose sum is σ = 85157424. Its totient is φ = 70964500.

The previous prime is 78060901. The next prime is 78060979. The reversal of 78060961 is 16906087.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78060961 - 2¹³ = 78052769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78060961.

It is not an unprimeable number, because it can be changed into a prime (78060901) 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, 3548215 + ... + 3548236.

It is an arithmetic number, because the mean of its divisors is an integer number (21289356).

Almost surely, 2^78060961 is an apocalyptic number.

It is an amenable number.

78060961 is a deficient number, since it is larger than the sum of its proper divisors (7096463).

78060961 is a wasteful number, since it uses less digits than its factorization.

78060961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096462.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 78060961 is about 8835.2114292755. The cubic root of 78060961 is about 427.3771492466.

The spelling of 78060961 in words is "seventy-eight million, sixty thousand, nine hundred sixty-one".