3506863694 has 4 divisors (see below), whose sum is σ = 5260295544. Its totient is φ = 1753431846.

The previous prime is 3506863651. The next prime is 3506863697. The reversal of 3506863694 is 4963686053.

3506863694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4963686053 = 263 ⋅18873331.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506863697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 876715922 + ... + 876715925.

It is an arithmetic number, because the mean of its divisors is an integer number (1315073886).

Almost surely, 2^3506863694 is an apocalyptic number.

3506863694 is a deficient number, since it is larger than the sum of its proper divisors (1753431850).

3506863694 is a wasteful number, since it uses less digits than its factorization.

3506863694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753431849.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The square root of 3506863694 is about 59218.7782211015. The cubic root of 3506863694 is about 1519.2863244180.

The spelling of 3506863694 in words is "three billion, five hundred six million, eight hundred sixty-three thousand, six hundred ninety-four".