3495869 has 4 divisors (see below), whose sum is σ = 3764796. Its totient is φ = 3226944.

The previous prime is 3495851. The next prime is 3495883. The reversal of 3495869 is 9685943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9685943 = 487 ⋅19889.

It can be written as a sum of positive squares in 2 ways, for example, as 1428025 + 2067844 = 1195^2 + 1438^2 .

It is a cyclic number.

It is not a de Polignac number, because 3495869 - 2¹² = 3491773 is a prime.

It is a super-2 number, since 2×3495869² = 24442200130322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3495889) 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, 134444 + ... + 134469.

It is an arithmetic number, because the mean of its divisors is an integer number (941199).

Almost surely, 2^3495869 is an apocalyptic number.

It is an amenable number.

3495869 is a deficient number, since it is larger than the sum of its proper divisors (268927).

3495869 is a wasteful number, since it uses less digits than its factorization.

3495869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268926.

The product of its digits is 233280, while the sum is 44.

The square root of 3495869 is about 1869.7243112288. The cubic root of 3495869 is about 151.7696910342.

The spelling of 3495869 in words is "three million, four hundred ninety-five thousand, eight hundred sixty-nine".