9997652 has 48 divisors (see below), whose sum is σ = 20901888. Its totient is φ = 4095840.

The previous prime is 9997643. The next prime is 9997661. The reversal of 9997652 is 2567999.

9997652 = T₆₃ + T₆₄ + ... + T₃₉₁.

It is an interprime number because it is at equal distance from previous prime (9997643) and next prime (9997661).

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9997597 and 9997606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93383 + ... + 93489.

It is an arithmetic number, because the mean of its divisors is an integer number (435456).

Almost surely, 2^9997652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9997652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10450944).

9997652 is an abundant number, since it is smaller than the sum of its proper divisors (10904236).

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

9997652 is a wasteful number, since it uses less digits than its factorization.

9997652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 234 counting only the distinct ones).

The product of its digits is 306180, while the sum is 47.

The square root of 9997652 is about 3161.9063869761. The cubic root of 9997652 is about 215.4266056411.

The spelling of 9997652 in words is "nine million, nine hundred ninety-seven thousand, six hundred fifty-two".