9757642 has 4 divisors (see below), whose sum is σ = 14636466. Its totient is φ = 4878820.

The previous prime is 9757637. The next prime is 9757667. The reversal of 9757642 is 2467579.

9757642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7623121 + 2134521 = 2761^2 + 1461^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9757595 and 9757604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439409 + ... + 2439412.

Almost surely, 2^9757642 is an apocalyptic number.

9757642 is a deficient number, since it is larger than the sum of its proper divisors (4878824).

9757642 is a wasteful number, since it uses less digits than its factorization.

9757642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4878823.

The product of its digits is 105840, while the sum is 40.

The square root of 9757642 is about 3123.7224588622. The cubic root of 9757642 is about 213.6887343082.

The spelling of 9757642 in words is "nine million, seven hundred fifty-seven thousand, six hundred forty-two".