8749645 has 16 divisors (see below), whose sum is σ = 11266560. Its totient is φ = 6499584.

The previous prime is 8749627. The next prime is 8749651. The reversal of 8749645 is 5469478.

It is a cyclic number.

It is not a de Polignac number, because 8749645 - 2⁵ = 8749613 is a prime.

It is a super-3 number, since 3×8749645³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6064 + ... + 7366.

It is an arithmetic number, because the mean of its divisors is an integer number (704160).

Almost surely, 2^8749645 is an apocalyptic number.

8749645 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8749645 is a deficient number, since it is larger than the sum of its proper divisors (2516915).

8749645 is a wasteful number, since it uses less digits than its factorization.

8749645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404.

The product of its digits is 241920, while the sum is 43.

The square root of 8749645 is about 2957.9798849891. The cubic root of 8749645 is about 206.0614781789.

The spelling of 8749645 in words is "eight million, seven hundred forty-nine thousand, six hundred forty-five".