3691213008 has 80 divisors (see below), whose sum is σ = 10954525056. Its totient is φ = 1049149440.

The previous prime is 3691212979. The next prime is 3691213033. The reversal of 3691213008 is 8003121963.

It is a self number, because there is not a number n which added to its sum of digits gives 3691213008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36388 + ... + 93308.

Almost surely, 2^3691213008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3691213008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5477262528).

3691213008 is an abundant number, since it is smaller than the sum of its proper divisors (7263312048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3691213008 is a wasteful number, since it uses less digits than its factorization.

3691213008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57132 (or 57126 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3691213008 is about 60755.3537394031. The cubic root of 3691213008 is about 1545.4550187320.

The spelling of 3691213008 in words is "three billion, six hundred ninety-one million, two hundred thirteen thousand, eight".