78430046 has 8 divisors (see below), whose sum is σ = 122760144. Its totient is φ = 37510000.

The previous prime is 78430039. The next prime is 78430073. The reversal of 78430046 is 64003487.

It is a happy number.

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

It is a super-3 number, since 3×78430046³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78429994 and 78430021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852455 + ... + 852546.

It is an arithmetic number, because the mean of its divisors is an integer number (15345018).

Almost surely, 2^78430046 is an apocalyptic number.

78430046 is a deficient number, since it is larger than the sum of its proper divisors (44330098).

78430046 is a wasteful number, since it uses less digits than its factorization.

78430046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705026.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 78430046 is about 8856.0739608474. The cubic root of 78430046 is about 428.0496601475.

The spelling of 78430046 in words is "seventy-eight million, four hundred thirty thousand, forty-six".