678083612 has 6 divisors (see below), whose sum is σ = 1186646328. Its totient is φ = 339041804.

The previous prime is 678083611. The next prime is 678083639. The reversal of 678083612 is 216380876.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 678083612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678083611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84760448 + ... + 84760455.

It is an arithmetic number, because the mean of its divisors is an integer number (197774388).

Almost surely, 2^678083612 is an apocalyptic number.

It is an amenable number.

678083612 is a deficient number, since it is larger than the sum of its proper divisors (508562716).

678083612 is a wasteful number, since it uses less digits than its factorization.

678083612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169520907 (or 169520905 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 678083612 is about 26040.0386328438. The cubic root of 678083612 is about 878.5390756569.

The spelling of 678083612 in words is "six hundred seventy-eight million, eighty-three thousand, six hundred twelve".