8869629620 has 18 divisors (see below), whose sum is σ = 18627106722. Its totient is φ = 3547683376.

The previous prime is 8869629617. The next prime is 8869629667. The reversal of 8869629620 is 269269688.

It can be written as a sum of positive squares in only one way, i.e., 7095703696 + 1773925924 = 84236^2 + 42118^2 .

It is a super-3 number, since 3×8869629620³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 410651 + ... + 431709.

Almost surely, 2^8869629620 is an apocalyptic number.

It is an amenable number.

8869629620 is an abundant number, since it is smaller than the sum of its proper divisors (9757477102).

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

8869629620 is an frugal number, since it uses more digits than its factorization.

8869629620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42127 (or 21066 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 56.

The square root of 8869629620 is about 94178.7110763361. The cubic root of 8869629620 is about 2069.9911798422.

The spelling of 8869629620 in words is "eight billion, eight hundred sixty-nine million, six hundred twenty-nine thousand, six hundred twenty".