678374461 has 8 divisors (see below), whose sum is σ = 719532000. Its totient is φ = 637762320.

The previous prime is 678374449. The next prime is 678374491. The reversal of 678374461 is 164473876.

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 678374461 - 2⁵ = 678374429 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 (678374491) 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, 133786 + ... + 138763.

It is an arithmetic number, because the mean of its divisors is an integer number (89941500).

Almost surely, 2^678374461 is an apocalyptic number.

It is an amenable number.

678374461 is a deficient number, since it is larger than the sum of its proper divisors (41157539).

678374461 is a wasteful number, since it uses less digits than its factorization.

678374461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272699.

The product of its digits is 677376, while the sum is 46.

The square root of 678374461 is about 26045.6226840519. The cubic root of 678374461 is about 878.6646676844.

The spelling of 678374461 in words is "six hundred seventy-eight million, three hundred seventy-four thousand, four hundred sixty-one".