5678945 has 8 divisors (see below), whose sum is σ = 6999144. Its totient is φ = 4420224.

The previous prime is 5678941. The next prime is 5678947. The reversal of 5678945 is 5498765.

It can be written as a sum of positive squares in 4 ways, for example, as 516961 + 5161984 = 719^2 + 2272^2 .

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 5678945 - 2² = 5678941 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5678896 and 5678905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5678941) 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, 15164 + ... + 15533.

It is an arithmetic number, because the mean of its divisors is an integer number (874893).

Almost surely, 2^5678945 is an apocalyptic number.

It is an amenable number.

5678945 is a deficient number, since it is larger than the sum of its proper divisors (1320199).

5678945 is a wasteful number, since it uses less digits than its factorization.

5678945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30739.

The product of its digits is 302400, while the sum is 44.

The square root of 5678945 is about 2383.0537132008. The cubic root of 5678945 is about 178.4113807114.

The spelling of 5678945 in words is "five million, six hundred seventy-eight thousand, nine hundred forty-five".