8791738 has 4 divisors (see below), whose sum is σ = 13187610. Its totient is φ = 4395868.

The previous prime is 8791733. The next prime is 8791751. The reversal of 8791738 is 8371978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8371978 = 2 ⋅4185989.

It can be written as a sum of positive squares in only one way, i.e., 8684809 + 106929 = 2947^2 + 327^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8791694 and 8791703.

It is not an unprimeable number, because it can be changed into a prime (8791733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197933 + ... + 2197936.

Almost surely, 2^8791738 is an apocalyptic number.

8791738 is a deficient number, since it is larger than the sum of its proper divisors (4395872).

8791738 is a wasteful number, since it uses less digits than its factorization.

8791738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395871.

The product of its digits is 84672, while the sum is 43.

The square root of 8791738 is about 2965.0865080129. The cubic root of 8791738 is about 206.3913915094.

The spelling of 8791738 in words is "eight million, seven hundred ninety-one thousand, seven hundred thirty-eight".