9657942 has 32 divisors (see below), whose sum is σ = 22194432. Its totient is φ = 2744544.

The previous prime is 9657937. The next prime is 9657943. The reversal of 9657942 is 2497569.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9657894 and 9657903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9657943) 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 15 ways as a sum of consecutive naturals, for example, 9028 + ... + 10040.

It is an arithmetic number, because the mean of its divisors is an integer number (693576).

Almost surely, 2^9657942 is an apocalyptic number.

9657942 is an abundant number, since it is smaller than the sum of its proper divisors (12536490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9657942 is a wasteful number, since it uses less digits than its factorization.

9657942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its digits is 136080, while the sum is 42.

The square root of 9657942 is about 3107.7229606257. The cubic root of 9657942 is about 212.9584436992.

The spelling of 9657942 in words is "nine million, six hundred fifty-seven thousand, nine hundred forty-two".