3968779 has 4 divisors (see below), whose sum is σ = 3980376. Its totient is φ = 3957184.

The previous prime is 3968761. The next prime is 3968801. The reversal of 3968779 is 9778693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9778693 = 37 ⋅264289.

It is a cyclic number.

It is not a de Polignac number, because 3968779 - 2¹³ = 3960587 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 9 + 6⁶ + 8⁷ + 7⁷ + 7⁷ + 9³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3968729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5269 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (995094).

Almost surely, 2^3968779 is an apocalyptic number.

3968779 is a deficient number, since it is larger than the sum of its proper divisors (11597).

3968779 is a wasteful number, since it uses less digits than its factorization.

3968779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11596.

The product of its digits is 571536, while the sum is 49.

The square root of 3968779 is about 1992.1794597877. The cubic root of 3968779 is about 158.3260239162.

The spelling of 3968779 in words is "three million, nine hundred sixty-eight thousand, seven hundred seventy-nine".