8002661629 has 4 divisors (see below), whose sum is σ = 8197848540. Its totient is φ = 7807474720.

The previous prime is 8002661627. The next prime is 8002661633. The reversal of 8002661629 is 9261662008.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 263412900 + 7739248729 = 16230^2 + 87973^2 .

It is a cyclic number.

It is not a de Polignac number, because 8002661629 - 2¹ = 8002661627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8002661591 and 8002661600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8002661627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97593394 + ... + 97593475.

It is an arithmetic number, because the mean of its divisors is an integer number (2049462135).

Almost surely, 2^8002661629 is an apocalyptic number.

It is an amenable number.

8002661629 is a deficient number, since it is larger than the sum of its proper divisors (195186911).

8002661629 is a wasteful number, since it uses less digits than its factorization.

8002661629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195186910.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 8002661629 is about 89457.5968210638. The cubic root of 8002661629 is about 2000.2217778231.

The spelling of 8002661629 in words is "eight billion, two million, six hundred sixty-one thousand, six hundred twenty-nine".