8249388628 has 12 divisors (see below), whose sum is σ = 15546924820. Its totient is φ = 3807410112.

The previous prime is 8249388617. The next prime is 8249388643. The reversal of 8249388628 is 8268839428.

It can be written as a sum of positive squares in 2 ways, for example, as 3416636304 + 4832752324 = 58452^2 + 69518^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79320993 + ... + 79321096.

Almost surely, 2^8249388628 is an apocalyptic number.

It is an amenable number.

8249388628 is a deficient number, since it is larger than the sum of its proper divisors (7297536192).

8249388628 is a wasteful number, since it uses less digits than its factorization.

8249388628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158642106 (or 158642104 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 58.

The square root of 8249388628 is about 90826.1450684768. The cubic root of 8249388628 is about 2020.5700959267.

The spelling of 8249388628 in words is "eight billion, two hundred forty-nine million, three hundred eighty-eight thousand, six hundred twenty-eight".