678004941 has 4 divisors (see below), whose sum is σ = 904006592. Its totient is φ = 452003292.

The previous prime is 678004933. The next prime is 678004967. The reversal of 678004941 is 149400876.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 678004941 - 2³ = 678004933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 678004941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678004541) 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 3 ways as a sum of consecutive naturals, for example, 113000821 + ... + 113000826.

It is an arithmetic number, because the mean of its divisors is an integer number (226001648).

Almost surely, 2^678004941 is an apocalyptic number.

It is an amenable number.

678004941 is a deficient number, since it is larger than the sum of its proper divisors (226001651).

678004941 is a wasteful number, since it uses less digits than its factorization.

678004941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226001650.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 678004941 is about 26038.5280113911. The cubic root of 678004941 is about 878.5050984210.

It can be divided in two parts, 67 and 8004941, that added together give a palindrome (8005008).

The spelling of 678004941 in words is "six hundred seventy-eight million, four thousand, nine hundred forty-one".