78630419 has 8 divisors (see below), whose sum is σ = 90753888. Its totient is φ = 66729600.

The previous prime is 78630407. The next prime is 78630437. The reversal of 78630419 is 91403687.

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

It is not a de Polignac number, because 78630419 - 2¹⁶ = 78564883 is a prime.

It is a super-2 number, since 2×78630419² = 12365485584231122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78630449) 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, 54902 + ... + 56315.

It is an arithmetic number, because the mean of its divisors is an integer number (11344236).

Almost surely, 2^78630419 is an apocalyptic number.

78630419 is a deficient number, since it is larger than the sum of its proper divisors (12123469).

78630419 is a wasteful number, since it uses less digits than its factorization.

78630419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111325.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 78630419 is about 8867.3794888907. The cubic root of 78630419 is about 428.4138770986.

The spelling of 78630419 in words is "seventy-eight million, six hundred thirty thousand, four hundred nineteen".