3970531 has 2 divisors, whose sum is σ = 3970532. Its totient is φ = 3970530.

The previous prime is 3970529. The next prime is 3970567. The reversal of 3970531 is 1350793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3970531 - 2¹ = 3970529 is a prime.

It is a super-2 number, since 2×3970531² = 31530232843922, which contains 22 as substring.

Together with 3970529, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3970531.

It is not a weakly prime, because it can be changed into another prime (3970591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985265 + 1985266.

It is an arithmetic number, because the mean of its divisors is an integer number (1985266).

Almost surely, 2^3970531 is an apocalyptic number.

3970531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3970531 is an equidigital number, since it uses as much as digits as its factorization.

3970531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 3970531 is about 1992.6191306921. The cubic root of 3970531 is about 158.3493179307.

The spelling of 3970531 in words is "three million, nine hundred seventy thousand, five hundred thirty-one".