8157738 has 16 divisors (see below), whose sum is σ = 16513056. Its totient is φ = 2686320.

The previous prime is 8157731. The next prime is 8157749. The reversal of 8157738 is 8377518.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8157696 and 8157705.

It is not an unprimeable number, because it can be changed into a prime (8157731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7693 + ... + 8688.

It is an arithmetic number, because the mean of its divisors is an integer number (1032066).

Almost surely, 2^8157738 is an apocalyptic number.

8157738 is an abundant number, since it is smaller than the sum of its proper divisors (8355318).

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

8157738 is a wasteful number, since it uses less digits than its factorization.

8157738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16469.

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

The square root of 8157738 is about 2856.1754147811. The cubic root of 8157738 is about 201.3059374104.

The spelling of 8157738 in words is "eight million, one hundred fifty-seven thousand, seven hundred thirty-eight".