678089236 has 12 divisors (see below), whose sum is σ = 1294534080. Its totient is φ = 308222360.

The previous prime is 678089227. The next prime is 678089239. The reversal of 678089236 is 632980876.

It is a self number, because there is not a number n which added to its sum of digits gives 678089236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678089239) 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, 7705516 + ... + 7705603.

It is an arithmetic number, because the mean of its divisors is an integer number (107877840).

Almost surely, 2^678089236 is an apocalyptic number.

It is an amenable number.

678089236 is a deficient number, since it is larger than the sum of its proper divisors (616444844).

678089236 is a wasteful number, since it uses less digits than its factorization.

678089236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15411134 (or 15411132 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 678089236 is about 26040.1466201709. The cubic root of 678089236 is about 878.5415045069.

The spelling of 678089236 in words is "six hundred seventy-eight million, eighty-nine thousand, two hundred thirty-six".