78458343 has 4 divisors (see below), whose sum is σ = 104611128. Its totient is φ = 52305560.

The previous prime is 78458329. The next prime is 78458351. The reversal of 78458343 is 34385487.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34385487 = 3 ⋅11461829.

It is a cyclic number.

It is not a de Polignac number, because 78458343 - 2⁴ = 78458327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78458295 and 78458304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78458143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13076388 + ... + 13076393.

It is an arithmetic number, because the mean of its divisors is an integer number (26152782).

Almost surely, 2^78458343 is an apocalyptic number.

78458343 is a deficient number, since it is larger than the sum of its proper divisors (26152785).

78458343 is a wasteful number, since it uses less digits than its factorization.

78458343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26152784.

The product of its digits is 322560, while the sum is 42.

The square root of 78458343 is about 8857.6714208645. The cubic root of 78458343 is about 428.1011330436.

The spelling of 78458343 in words is "seventy-eight million, four hundred fifty-eight thousand, three hundred forty-three".