3961343 has 2 divisors, whose sum is σ = 3961344. Its totient is φ = 3961342.

The previous prime is 3961339. The next prime is 3961393. The reversal of 3961343 is 3431693.

It is a weak prime.

It is an emirp because it is prime and its reverse (3431693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3961343 - 2² = 3961339 is a prime.

It is equal to p₂₈₀₆₄₉ and since 3961343 and 280649 have the same sum of digits, it is a Honaker prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3961333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1980671 + 1980672.

It is an arithmetic number, because the mean of its divisors is an integer number (1980672).

Almost surely, 2^3961343 is an apocalyptic number.

3961343 is a deficient number, since it is larger than the sum of its proper divisors (1).

3961343 is an equidigital number, since it uses as much as digits as its factorization.

3961343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 29.

The square root of 3961343 is about 1990.3122870545. The cubic root of 3961343 is about 158.2270809449.

The spelling of 3961343 in words is "three million, nine hundred sixty-one thousand, three hundred forty-three".