9775642 has 8 divisors (see below), whose sum is σ = 14678100. Its totient is φ = 4882944.

The previous prime is 9775637. The next prime is 9775673. The reversal of 9775642 is 2465779.

It can be written as a sum of positive squares in 2 ways, for example, as 6245001 + 3530641 = 2499^2 + 1879^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 9775595 and 9775604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084 + ... + 4552.

Almost surely, 2^9775642 is an apocalyptic number.

9775642 is a deficient number, since it is larger than the sum of its proper divisors (4902458).

9775642 is a wasteful number, since it uses less digits than its factorization.

9775642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880.

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

The square root of 9775642 is about 3126.6023092168. The cubic root of 9775642 is about 213.8200513647.

The spelling of 9775642 in words is "nine million, seven hundred seventy-five thousand, six hundred forty-two".