678044119 has 4 divisors (see below), whose sum is σ = 678628296. Its totient is φ = 677459944.

The previous prime is 678044111. The next prime is 678044149. The reversal of 678044119 is 911440876.

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

It is a cyclic number.

It is not a de Polignac number, because 678044119 - 2³ = 678044111 is a prime.

It is a super-2 number, since 2×678044119² = 919487654620972322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678044111) 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, 290344 + ... + 292669.

It is an arithmetic number, because the mean of its divisors is an integer number (169657074).

Almost surely, 2^678044119 is an apocalyptic number.

678044119 is a deficient number, since it is larger than the sum of its proper divisors (584177).

678044119 is a wasteful number, since it uses less digits than its factorization.

678044119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584176.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 678044119 is about 26039.2803087950. The cubic root of 678044119 is about 878.5220193448.

The spelling of 678044119 in words is "six hundred seventy-eight million, forty-four thousand, one hundred nineteen".