8749917 has 32 divisors (see below), whose sum is σ = 14981760. Its totient is φ = 4988160.

The previous prime is 8749903. The next prime is 8749921. The reversal of 8749917 is 7199478.

It is not a de Polignac number, because 8749917 - 2⁷ = 8749789 is a prime.

It is a super-3 number, since 3×8749917³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

Its product of digits (127008) is a multiple of the sum of its prime divisors (1764).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8749927) 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 in 31 ways as a sum of consecutive naturals, for example, 4183 + ... + 5915.

It is an arithmetic number, because the mean of its divisors is an integer number (468180).

Almost surely, 2^8749917 is an apocalyptic number.

It is an amenable number.

8749917 is a deficient number, since it is larger than the sum of its proper divisors (6231843).

8749917 is a wasteful number, since it uses less digits than its factorization.

8749917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1764 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 8749917 is about 2958.0258619559. The cubic root of 8749917 is about 206.0636134328.

The spelling of 8749917 in words is "eight million, seven hundred forty-nine thousand, nine hundred seventeen".