9742751 has 8 divisors (see below), whose sum is σ = 10354464. Its totient is φ = 9135360.

The previous prime is 9742739. The next prime is 9742757. The reversal of 9742751 is 1572479.

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

It is a cyclic number.

It is not a de Polignac number, because 9742751 - 2¹⁸ = 9480607 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9742757) 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, 4406 + ... + 6236.

It is an arithmetic number, because the mean of its divisors is an integer number (1294308).

Almost surely, 2^9742751 is an apocalyptic number.

9742751 is a deficient number, since it is larger than the sum of its proper divisors (611713).

9742751 is a wasteful number, since it uses less digits than its factorization.

9742751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161.

The product of its digits is 17640, while the sum is 35.

The square root of 9742751 is about 3121.3380143778. The cubic root of 9742751 is about 213.5799765091.

The spelling of 9742751 in words is "nine million, seven hundred forty-two thousand, seven hundred fifty-one".