8227578436 has 243 divisors, whose sum is σ = 20076997311. Its totient is φ = 2938874400.

The previous prime is 8227578421. The next prime is 8227578481. The reversal of 8227578436 is 6348757228.

It is a happy number.

The square root of 8227578436 is 90706.

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

Its product of digits (4515840) is a multiple of the sum of its prime divisors (70).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 265405741 + ... + 265405771.

Almost surely, 2^8227578436 is an apocalyptic number.

8227578436 is the 90706-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8227578436

8227578436 is an abundant number, since it is smaller than the sum of its proper divisors (11849418875).

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

8227578436 is a wasteful number, since it uses less digits than its factorization.

8227578436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 70 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The cubic root of 8227578436 is about 2018.7878258195.

The spelling of 8227578436 in words is "eight billion, two hundred twenty-seven million, five hundred seventy-eight thousand, four hundred thirty-six".