7964778 has 16 divisors (see below), whose sum is σ = 15960096. Its totient is φ = 2649840.

The previous prime is 7964753. The next prime is 7964779. The reversal of 7964778 is 8774697.

It is not an unprimeable number, because it can be changed into a prime (7964779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3493 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (997506).

Almost surely, 2^7964778 is an apocalyptic number.

7964778 is an abundant number, since it is smaller than the sum of its proper divisors (7995318).

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

7964778 is a wasteful number, since it uses less digits than its factorization.

7964778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549.

The product of its digits is 592704, while the sum is 48.

The square root of 7964778 is about 2822.1938275037. The cubic root of 7964778 is about 199.7060515164.

The spelling of 7964778 in words is "seven million, nine hundred sixty-four thousand, seven hundred seventy-eight".