78432613 has 8 divisors (see below), whose sum is σ = 91544832. Its totient is φ = 65797296.

The previous prime is 78432581. The next prime is 78432619. The reversal of 78432613 is 31623487.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 78432613 - 2⁵ = 78432581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78432619) 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 7 ways as a sum of consecutive naturals, for example, 118870 + ... + 119527.

It is an arithmetic number, because the mean of its divisors is an integer number (11443104).

Almost surely, 2^78432613 is an apocalyptic number.

It is an amenable number.

78432613 is a deficient number, since it is larger than the sum of its proper divisors (13112219).

78432613 is a wasteful number, since it uses less digits than its factorization.

78432613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238451.

The product of its digits is 24192, while the sum is 34.

The square root of 78432613 is about 8856.2188884422. The cubic root of 78432613 is about 428.0543300903.

The spelling of 78432613 in words is "seventy-eight million, four hundred thirty-two thousand, six hundred thirteen".