3207688013 has 8 divisors (see below), whose sum is σ = 3289707960. Its totient is φ = 3125848320.

The previous prime is 3207687991. The next prime is 3207688019. The reversal of 3207688013 is 3108867023.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 99960004 + 3107728009 = 9998^2 + 55747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3207688013 - 2⁶ = 3207687949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3207688019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8648 + ... + 80561.

It is an arithmetic number, because the mean of its divisors is an integer number (411213495).

Almost surely, 2^3207688013 is an apocalyptic number.

It is an amenable number.

3207688013 is a deficient number, since it is larger than the sum of its proper divisors (82019947).

3207688013 is an equidigital number, since it uses as much as digits as its factorization.

3207688013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90127.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 3207688013 is about 56636.4548060699. The cubic root of 3207688013 is about 1474.7917757200.

The spelling of 3207688013 in words is "three billion, two hundred seven million, six hundred eighty-eight thousand, thirteen".