5678651 has 12 divisors (see below), whose sum is σ = 6339312. Its totient is φ = 5082000.

The previous prime is 5678641. The next prime is 5678669. The reversal of 5678651 is 1568765.

It is a happy number.

It is not a de Polignac number, because 5678651 - 2¹⁸ = 5416507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5678641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8261 + ... + 8921.

It is an arithmetic number, because the mean of its divisors is an integer number (528276).

Almost surely, 2^5678651 is an apocalyptic number.

5678651 is a deficient number, since it is larger than the sum of its proper divisors (660661).

5678651 is a wasteful number, since it uses less digits than its factorization.

5678651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 743 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 5678651 is about 2382.9920268436. The cubic root of 5678651 is about 178.4083018619.

Adding to 5678651 its sum of digits (38), we get a square (5678689 = 2383²).

The spelling of 5678651 in words is "five million, six hundred seventy-eight thousand, six hundred fifty-one".