3965497 has 4 divisors (see below), whose sum is σ = 3972580. Its totient is φ = 3958416.

The previous prime is 3965483. The next prime is 3965537. The reversal of 3965497 is 7945693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80656 + 3884841 = 284^2 + 1971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3965497 is a prime.

It is a Duffinian number.

3965497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3965447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2622 + ... + 3847.

It is an arithmetic number, because the mean of its divisors is an integer number (993145).

Almost surely, 2^3965497 is an apocalyptic number.

It is an amenable number.

3965497 is a deficient number, since it is larger than the sum of its proper divisors (7083).

3965497 is an equidigital number, since it uses as much as digits as its factorization.

3965497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7082.

The product of its digits is 204120, while the sum is 43.

The square root of 3965497 is about 1991.3555684508. The cubic root of 3965497 is about 158.2823690699.

It can be divided in two parts, 39 and 65497, that added together give a 16-th power (65536 = 2¹⁶).

The spelling of 3965497 in words is "three million, nine hundred sixty-five thousand, four hundred ninety-seven".