9971602 has 4 divisors (see below), whose sum is σ = 14957406. Its totient is φ = 4985800.

The previous prime is 9971597. The next prime is 9971603. The reversal of 9971602 is 2061799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2061799 = 331 ⋅6229.

It can be written as a sum of positive squares in only one way, i.e., 7958041 + 2013561 = 2821^2 + 1419^2 .

It is not an unprimeable number, because it can be changed into a prime (9971603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2492899 + ... + 2492902.

Almost surely, 2^9971602 is an apocalyptic number.

9971602 is a deficient number, since it is larger than the sum of its proper divisors (4985804).

9971602 is a wasteful number, since it uses less digits than its factorization.

9971602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985803.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 9971602 is about 3157.7843498250. The cubic root of 9971602 is about 215.2393368618.

The spelling of 9971602 in words is "nine million, nine hundred seventy-one thousand, six hundred two".