3980797 has 4 divisors (see below), whose sum is σ = 3990940. Its totient is φ = 3970656.

The previous prime is 3980761. The next prime is 3980819. The reversal of 3980797 is 7970893.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3556996 + 423801 = 1886^2 + 651^2 .

It is a cyclic number.

It is not a de Polignac number, because 3980797 - 2¹¹ = 3978749 is a prime.

It is a Duffinian number.

3980797 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4458 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (997735).

Almost surely, 2^3980797 is an apocalyptic number.

It is an amenable number.

3980797 is a deficient number, since it is larger than the sum of its proper divisors (10143).

3980797 is an equidigital number, since it uses as much as digits as its factorization.

3980797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 3980797 is about 1995.1934743277. The cubic root of 3980797 is about 158.4856737542.

The spelling of 3980797 in words is "three million, nine hundred eighty thousand, seven hundred ninety-seven".