3505684879 has 4 divisors (see below), whose sum is σ = 3618771520. Its totient is φ = 3392598240.

The previous prime is 3505684859. The next prime is 3505684939. The reversal of 3505684879 is 9784865053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9784865053 = 523 ⋅18709111.

It is a cyclic number.

It is not a de Polignac number, because 3505684879 - 2²⁵ = 3472130447 is a prime.

It is a super-4 number, since 4×3505684879⁴ (a number of 39 digits) contains 4444 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 (3505684859) 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, 56543274 + ... + 56543335.

It is an arithmetic number, because the mean of its divisors is an integer number (904692880).

Almost surely, 2^3505684879 is an apocalyptic number.

3505684879 is a deficient number, since it is larger than the sum of its proper divisors (113086641).

3505684879 is a wasteful number, since it uses less digits than its factorization.

3505684879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113086640.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The square root of 3505684879 is about 59208.8243338778. The cubic root of 3505684879 is about 1519.1160717957.

The spelling of 3505684879 in words is "three billion, five hundred five million, six hundred eighty-four thousand, eight hundred seventy-nine".