78060513 has 16 divisors (see below), whose sum is σ = 105445440. Its totient is φ = 51362304.

The previous prime is 78060509. The next prime is 78060517. The reversal of 78060513 is 31506087.

It is an interprime number because it is at equal distance from previous prime (78060509) and next prime (78060517).

It is not a de Polignac number, because 78060513 - 2² = 78060509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78060517) 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, 138370 + ... + 138932.

It is an arithmetic number, because the mean of its divisors is an integer number (6590340).

Almost surely, 2^78060513 is an apocalyptic number.

It is an amenable number.

78060513 is a deficient number, since it is larger than the sum of its proper divisors (27384927).

78060513 is a wasteful number, since it uses less digits than its factorization.

78060513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 78060513 is about 8835.1860761390. The cubic root of 78060513 is about 427.3763316576.

The spelling of 78060513 in words is "seventy-eight million, sixty thousand, five hundred thirteen".