3491965 has 4 divisors (see below), whose sum is σ = 4190364. Its totient is φ = 2793568.

The previous prime is 3491963. The next prime is 3491981. The reversal of 3491965 is 5691943.

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 432964 + 3059001 = 658^2 + 1749^2 .

It is a cyclic number.

It is not a de Polignac number, because 3491965 - 2¹ = 3491963 is a prime.

It is a super-2 number, since 2×3491965² = 24387639122450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491963) 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, 349192 + ... + 349201.

It is an arithmetic number, because the mean of its divisors is an integer number (1047591).

Almost surely, 2^3491965 is an apocalyptic number.

It is an amenable number.

3491965 is a deficient number, since it is larger than the sum of its proper divisors (698399).

3491965 is an equidigital number, since it uses as much as digits as its factorization.

3491965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698398.

The product of its digits is 29160, while the sum is 37.

The square root of 3491965 is about 1868.6800154119. The cubic root of 3491965 is about 151.7131738925.

The spelling of 3491965 in words is "three million, four hundred ninety-one thousand, nine hundred sixty-five".