8491738 has 16 divisors (see below), whose sum is σ = 14074560. Its totient is φ = 3822016.

The previous prime is 8491733. The next prime is 8491741. The reversal of 8491738 is 8371948.

It is a super-2 number, since 2×8491738² = 144219228521288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8491738.

It is not an unprimeable number, because it can be changed into a prime (8491733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4648 + ... + 6211.

It is an arithmetic number, because the mean of its divisors is an integer number (879660).

Almost surely, 2^8491738 is an apocalyptic number.

8491738 is a deficient number, since it is larger than the sum of its proper divisors (5582822).

8491738 is a wasteful number, since it uses less digits than its factorization.

8491738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10901.

The product of its digits is 48384, while the sum is 40.

The square root of 8491738 is about 2914.0586816329. The cubic root of 8491738 is about 204.0166108478.

It can be divided in two parts, 8491 and 738, that added together give a palindrome (9229).

The spelling of 8491738 in words is "eight million, four hundred ninety-one thousand, seven hundred thirty-eight".