3720779 has 4 divisors (see below), whose sum is σ = 3882576. Its totient is φ = 3558984.

The previous prime is 3720767. The next prime is 3720781. The reversal of 3720779 is 9770273.

3720779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3720779 - 2¹⁶ = 3655243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3720179) 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 3 ways as a sum of consecutive naturals, for example, 80864 + ... + 80909.

It is an arithmetic number, because the mean of its divisors is an integer number (970644).

Almost surely, 2^3720779 is an apocalyptic number.

3720779 is a deficient number, since it is larger than the sum of its proper divisors (161797).

3720779 is a wasteful number, since it uses less digits than its factorization.

3720779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161796.

The product of its (nonzero) digits is 18522, while the sum is 35.

The square root of 3720779 is about 1928.9320879699. The cubic root of 3720779 is about 154.9570328353.

The spelling of 3720779 in words is "three million, seven hundred twenty thousand, seven hundred seventy-nine".