8688229477 has 4 divisors (see below), whose sum is σ = 8968494976. Its totient is φ = 8407963980.

The previous prime is 8688229463. The next prime is 8688229523. The reversal of 8688229477 is 7749228868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8688229477 - 2⁷ = 8688229349 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 (8688229447) 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, 140132703 + ... + 140132764.

It is an arithmetic number, because the mean of its divisors is an integer number (2242123744).

Almost surely, 2^8688229477 is an apocalyptic number.

It is an amenable number.

8688229477 is a deficient number, since it is larger than the sum of its proper divisors (280265499).

8688229477 is a wasteful number, since it uses less digits than its factorization.

8688229477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280265498.

The product of its digits is 21676032, while the sum is 61.

The square root of 8688229477 is about 93210.6725488020. The cubic root of 8688229477 is about 2055.7821668012.

The spelling of 8688229477 in words is "eight billion, six hundred eighty-eight million, two hundred twenty-nine thousand, four hundred seventy-seven".