6465678 has 16 divisors (see below), whose sum is σ = 13692240. Its totient is φ = 2028416.

The previous prime is 6465677. The next prime is 6465703. The reversal of 6465678 is 8765646.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465671) 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, 31593 + ... + 31796.

It is an arithmetic number, because the mean of its divisors is an integer number (855765).

Almost surely, 2^6465678 is an apocalyptic number.

6465678 is an abundant number, since it is smaller than the sum of its proper divisors (7226562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6465678 is a wasteful number, since it uses less digits than its factorization.

6465678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63411.

The product of its digits is 241920, while the sum is 42.

The square root of 6465678 is about 2542.7697497021. The cubic root of 6465678 is about 186.2964978572.

Subtracting 6465678 from its reverse (8765646), we obtain a cube (2299968 = 132³).

The spelling of 6465678 in words is "six million, four hundred sixty-five thousand, six hundred seventy-eight".