9659901 has 4 divisors (see below), whose sum is σ = 12879872. Its totient is φ = 6439932.

The previous prime is 9659891. The next prime is 9659911. The reversal of 9659901 is 1099569.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (9659891) and next prime (9659911).

It is not a de Polignac number, because 9659901 - 2⁷ = 9659773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9659901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9659911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609981 + ... + 1609986.

It is an arithmetic number, because the mean of its divisors is an integer number (3219968).

Almost surely, 2^9659901 is an apocalyptic number.

It is an amenable number.

9659901 is a deficient number, since it is larger than the sum of its proper divisors (3219971).

9659901 is a wasteful number, since it uses less digits than its factorization.

9659901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219970.

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 9659901 is about 3108.0381271793. The cubic root of 9659901 is about 212.9728414314.

The spelling of 9659901 in words is "nine million, six hundred fifty-nine thousand, nine hundred one".