78430613 has 8 divisors (see below), whose sum is σ = 82717920. Its totient is φ = 74159280.

The previous prime is 78430609. The next prime is 78430631. The reversal of 78430613 is 31603487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78430613 - 2² = 78430609 is a prime.

It is a super-2 number, since 2×78430613² = 12302722111111538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78430613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78430603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6878 + ... + 14288.

It is an arithmetic number, because the mean of its divisors is an integer number (10339740).

Almost surely, 2^78430613 is an apocalyptic number.

It is an amenable number.

78430613 is a deficient number, since it is larger than the sum of its proper divisors (4287307).

78430613 is a wasteful number, since it uses less digits than its factorization.

78430613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7987.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 78430613 is about 8856.1059727174. The cubic root of 78430613 is about 428.0506916551.

The spelling of 78430613 in words is "seventy-eight million, four hundred thirty thousand, six hundred thirteen".