78914419 has 8 divisors (see below), whose sum is σ = 80635712. Its totient is φ = 77207040.

The previous prime is 78914413. The next prime is 78914461. The reversal of 78914419 is 91441987.

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 78914419 - 2³ = 78914411 is a prime.

It is a super-2 number, since 2×78914419² = 12454971052215122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78914411) 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, 8422 + ... + 15124.

It is an arithmetic number, because the mean of its divisors is an integer number (10079464).

Almost surely, 2^78914419 is an apocalyptic number.

78914419 is a deficient number, since it is larger than the sum of its proper divisors (1721293).

78914419 is a wasteful number, since it uses less digits than its factorization.

78914419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6957.

The product of its digits is 72576, while the sum is 43.

The square root of 78914419 is about 8883.3788053871. The cubic root of 78914419 is about 428.9290439279.

The spelling of 78914419 in words is "seventy-eight million, nine hundred fourteen thousand, four hundred nineteen".