8757138 has 48 divisors (see below), whose sum is σ = 19970496. Its totient is φ = 2544480.

The previous prime is 8757131. The next prime is 8757143. The reversal of 8757138 is 8317578.

8757138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 8757096 and 8757105.

It is not an unprimeable number, because it can be changed into a prime (8757131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28003 + ... + 28313.

It is an arithmetic number, because the mean of its divisors is an integer number (416052).

Almost surely, 2^8757138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8757138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9985248).

8757138 is an abundant number, since it is smaller than the sum of its proper divisors (11213358).

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

8757138 is a wasteful number, since it uses less digits than its factorization.

8757138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 348 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 8757138 is about 2959.2461877985. The cubic root of 8757138 is about 206.1202835404.

The spelling of 8757138 in words is "eight million, seven hundred fifty-seven thousand, one hundred thirty-eight".