9640678 has 8 divisors (see below), whose sum is σ = 14512968. Its totient is φ = 4803024.

The previous prime is 9640667. The next prime is 9640693. The reversal of 9640678 is 8760469.

9640678 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 self number, because there is not a number n which added to its sum of digits gives 9640678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7951 + ... + 9082.

It is an arithmetic number, because the mean of its divisors is an integer number (1814121).

Almost surely, 2^9640678 is an apocalyptic number.

9640678 is a deficient number, since it is larger than the sum of its proper divisors (4872290).

9640678 is a wasteful number, since it uses less digits than its factorization.

9640678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17318.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 9640678 is about 3104.9441218805. The cubic root of 9640678 is about 212.8314771262.

It can be divided in two parts, 9640 and 678, that multiplied together give a triangular number (6535920 = T₃₆₁₅).

The spelling of 9640678 in words is "nine million, six hundred forty thousand, six hundred seventy-eight".