9972061 has 8 divisors (see below), whose sum is σ = 11144448. Its totient is φ = 8844000.

The previous prime is 9972059. The next prime is 9972101. The reversal of 9972061 is 1602799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9972061 - 2¹ = 9972059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10605 + ... + 11506.

It is an arithmetic number, because the mean of its divisors is an integer number (1393056).

Almost surely, 2^9972061 is an apocalyptic number.

It is an amenable number.

9972061 is a deficient number, since it is larger than the sum of its proper divisors (1172387).

9972061 is a wasteful number, since it uses less digits than its factorization.

9972061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22163.

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

The square root of 9972061 is about 3157.8570265292. The cubic root of 9972061 is about 215.2426393516.

The spelling of 9972061 in words is "nine million, nine hundred seventy-two thousand, sixty-one".