3641639716 has 81 divisors (see below), whose sum is σ = 7621295409. Its totient is φ = 1520719200.

The previous prime is 3641639681. The next prime is 3641639723. The reversal of 3641639716 is 6179361463.

The square root of 3641639716 is 60346.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 538704100 + 3102935616 = 23210^2 + 55704^2 .

It is a super-2 number, since 2×3641639716² = 26523079642297121312, which contains 22 as substring.

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 26 ways as a sum of consecutive naturals, for example, 17258851 + ... + 17259061.

Almost surely, 2^3641639716 is an apocalyptic number.

3641639716 is the 60346-th square number.

It is an amenable number.

3641639716 is an abundant number, since it is smaller than the sum of its proper divisors (3979655693).

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

3641639716 is a wasteful number, since it uses less digits than its factorization.

3641639716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 237 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The cubic root of 3641639716 is about 1538.5052844004.

The spelling of 3641639716 in words is "three billion, six hundred forty-one million, six hundred thirty-nine thousand, seven hundred sixteen".