678702901 has 8 divisors (see below), whose sum is σ = 691417440. Its totient is φ = 666028848.

The previous prime is 678702887. The next prime is 678702919. The reversal of 678702901 is 109207876.

678702901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 678702901 - 2¹¹ = 678700853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678702991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24835 + ... + 44431.

It is an arithmetic number, because the mean of its divisors is an integer number (86427180).

Almost surely, 2^678702901 is an apocalyptic number.

It is an amenable number.

678702901 is a deficient number, since it is larger than the sum of its proper divisors (12714539).

678702901 is a wasteful number, since it uses less digits than its factorization.

678702901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 678702901 is about 26051.9270112596. The cubic root of 678702901 is about 878.8064487991.

The spelling of 678702901 in words is "six hundred seventy-eight million, seven hundred two thousand, nine hundred one".