3980761 has 2 divisors, whose sum is σ = 3980762. Its totient is φ = 3980760.

The previous prime is 3980749. The next prime is 3980819. The reversal of 3980761 is 1670893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2073600 + 1907161 = 1440^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 3980761 - 2⁵ = 3980729 is a prime.

It is an Ulam number.

3980761 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3980161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1990380 + 1990381.

It is an arithmetic number, because the mean of its divisors is an integer number (1990381).

Almost surely, 2^3980761 is an apocalyptic number.

It is an amenable number.

3980761 is a deficient number, since it is larger than the sum of its proper divisors (1).

3980761 is an equidigital number, since it uses as much as digits as its factorization.

3980761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3980761 is about 1995.1844526259. The cubic root of 3980761 is about 158.4851960021.

The spelling of 3980761 in words is "three million, nine hundred eighty thousand, seven hundred sixty-one".