9679749 has 8 divisors (see below), whose sum is σ = 13665600. Its totient is φ = 6073536.

The previous prime is 9679679. The next prime is 9679751. The reversal of 9679749 is 9479769.

9679749 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9679749 - 2¹⁵ = 9646981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 189799 = 9679749 / (9 + 6 + 7 + 9 + 7 + 4 + 9).

9679749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9679799) 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, 94849 + ... + 94950.

It is an arithmetic number, because the mean of its divisors is an integer number (1708200).

Almost surely, 2^9679749 is an apocalyptic number.

It is an amenable number.

9679749 is a deficient number, since it is larger than the sum of its proper divisors (3985851).

9679749 is a wasteful number, since it uses less digits than its factorization.

9679749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189819.

The product of its digits is 857304, while the sum is 51.

The square root of 9679749 is about 3111.2294997316. The cubic root of 9679749 is about 213.1186052839.

The spelling of 9679749 in words is "nine million, six hundred seventy-nine thousand, seven hundred forty-nine".