3495693621 has 16 divisors (see below), whose sum is σ = 5337907200. Its totient is φ = 1993363248.

The previous prime is 3495693601. The next prime is 3495693623. The reversal of 3495693621 is 1263965943.

It is not a de Polignac number, because 3495693621 - 2⁵ = 3495693589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3495693623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163701 + ... + 183818.

It is an arithmetic number, because the mean of its divisors is an integer number (333619200).

Almost surely, 2^3495693621 is an apocalyptic number.

It is an amenable number.

3495693621 is a deficient number, since it is larger than the sum of its proper divisors (1842213579).

3495693621 is a wasteful number, since it uses less digits than its factorization.

3495693621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348008.

The product of its digits is 1049760, while the sum is 48.

The square root of 3495693621 is about 59124.3910835452. The cubic root of 3495693621 is about 1517.6715302324.

The spelling of 3495693621 in words is "three billion, four hundred ninety-five million, six hundred ninety-three thousand, six hundred twenty-one".