9972002 has 4 divisors (see below), whose sum is σ = 14958006. Its totient is φ = 4986000.

The previous prime is 9971993. The next prime is 9972007. The reversal of 9972002 is 2002799.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9740641 + 231361 = 3121^2 + 481^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9972007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2492999 + ... + 2493002.

Almost surely, 2^9972002 is an apocalyptic number.

9972002 is a deficient number, since it is larger than the sum of its proper divisors (4986004).

9972002 is a wasteful number, since it uses less digits than its factorization.

9972002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986003.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 9972002 is about 3157.8476847372. The cubic root of 9972002 is about 215.2422148542.

The spelling of 9972002 in words is "nine million, nine hundred seventy-two thousand, two".