3962689 has 2 divisors, whose sum is σ = 3962690. Its totient is φ = 3962688.

The previous prime is 3962671. The next prime is 3962701. The reversal of 3962689 is 9862693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3027600 + 935089 = 1740^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 3962689 - 2²¹ = 1865537 is a prime.

It is a super-2 number, since 2×3962689² = 31405808221442, which contains 22 as substring.

3962689 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3962489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1981344 + 1981345.

It is an arithmetic number, because the mean of its divisors is an integer number (1981345).

Almost surely, 2^3962689 is an apocalyptic number.

It is an amenable number.

3962689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3962689 is an equidigital number, since it uses as much as digits as its factorization.

3962689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 3962689 is about 1990.6503962273. The cubic root of 3962689 is about 158.2449999127.

The spelling of 3962689 in words is "three million, nine hundred sixty-two thousand, six hundred eighty-nine".