9649739 has 8 divisors (see below), whose sum is σ = 11081280. Its totient is φ = 8310600.

The previous prime is 9649729. The next prime is 9649747. The reversal of 9649739 is 9379469.

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

It is not a de Polignac number, because 9649739 - 2⁸ = 9649483 is a prime.

It is a d-powerful number, because it can be written as 9² + 6⁴ + 4⁸ + 9² + 7⁵ + 3¹⁴ + 9⁷ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9649693 and 9649702.

It is not an unprimeable number, because it can be changed into a prime (9649729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22877 + ... + 23294.

It is an arithmetic number, because the mean of its divisors is an integer number (1385160).

Almost surely, 2^9649739 is an apocalyptic number.

9649739 is a deficient number, since it is larger than the sum of its proper divisors (1431541).

9649739 is a wasteful number, since it uses less digits than its factorization.

9649739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46201.

The product of its digits is 367416, while the sum is 47.

The square root of 9649739 is about 3106.4029036814. The cubic root of 9649739 is about 212.8981343384.

The spelling of 9649739 in words is "nine million, six hundred forty-nine thousand, seven hundred thirty-nine".