78340683 has 4 divisors (see below), whose sum is σ = 104454248. Its totient is φ = 52227120.

The previous prime is 78340657. The next prime is 78340697. The reversal of 78340683 is 38604387.

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

It is not a de Polignac number, because 78340683 - 2²⁰ = 77292107 is a prime.

It is a super-2 number, since 2×78340683² = 12274525225812978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78342683) 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, 13056778 + ... + 13056783.

It is an arithmetic number, because the mean of its divisors is an integer number (26113562).

Almost surely, 2^78340683 is an apocalyptic number.

78340683 is a deficient number, since it is larger than the sum of its proper divisors (26113565).

78340683 is a wasteful number, since it uses less digits than its factorization.

78340683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26113564.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 78340683 is about 8851.0272285199. The cubic root of 78340683 is about 427.8870254561.

The spelling of 78340683 in words is "seventy-eight million, three hundred forty thousand, six hundred eighty-three".