3980479 has 2 divisors, whose sum is σ = 3980480. Its totient is φ = 3980478.

The previous prime is 3980461. The next prime is 3980491. The reversal of 3980479 is 9740893.

3980479 = 812² + 813² + ... + 817².

It is a strong prime.

It is an emirp because it is prime and its reverse (9740893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3980479 - 2⁹ = 3979967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3980419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1990239 + 1990240.

It is an arithmetic number, because the mean of its divisors is an integer number (1990240).

Almost surely, 2^3980479 is an apocalyptic number.

3980479 is a deficient number, since it is larger than the sum of its proper divisors (1).

3980479 is an equidigital number, since it uses as much as digits as its factorization.

3980479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 3980479 is about 1995.1137812165. The cubic root of 3980479 is about 158.4814535116.

The spelling of 3980479 in words is "three million, nine hundred eighty thousand, four hundred seventy-nine".