9629661 has 4 divisors (see below), whose sum is σ = 12839552. Its totient is φ = 6419772.

The previous prime is 9629651. The next prime is 9629671. The reversal of 9629661 is 1669269.

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 (9629651) and next prime (9629671).

It is not a de Polignac number, because 9629661 - 2⁹ = 9629149 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 (9629611) 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, 1604941 + ... + 1604946.

It is an arithmetic number, because the mean of its divisors is an integer number (3209888).

Almost surely, 2^9629661 is an apocalyptic number.

It is an amenable number.

9629661 is a deficient number, since it is larger than the sum of its proper divisors (3209891).

9629661 is a wasteful number, since it uses less digits than its factorization.

9629661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209890.

The product of its digits is 34992, while the sum is 39.

The square root of 9629661 is about 3103.1695087442. The cubic root of 9629661 is about 212.7503743199.

The spelling of 9629661 in words is "nine million, six hundred twenty-nine thousand, six hundred sixty-one".