678885461 has 8 divisors (see below), whose sum is σ = 701088000. Its totient is φ = 656701920.

The previous prime is 678885451. The next prime is 678885479. The reversal of 678885461 is 164588876.

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 678885461 - 2¹⁸ = 678623317 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 (678885401) 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, 121865 + ... + 127313.

It is an arithmetic number, because the mean of its divisors is an integer number (87636000).

Almost surely, 2^678885461 is an apocalyptic number.

It is an amenable number.

678885461 is a deficient number, since it is larger than the sum of its proper divisors (22202539).

678885461 is a wasteful number, since it uses less digits than its factorization.

678885461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9499.

The product of its digits is 2580480, while the sum is 53.

The square root of 678885461 is about 26055.4305472007. The cubic root of 678885461 is about 878.8852365978.

The spelling of 678885461 in words is "six hundred seventy-eight million, eight hundred eighty-five thousand, four hundred sixty-one".