9972977 has 8 divisors (see below), whose sum is σ = 11640576. Its totient is φ = 8366112.

The previous prime is 9972973. The next prime is 9972997. The reversal of 9972977 is 7792799.

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

It is a cyclic number.

It is not a de Polignac number, because 9972977 - 2² = 9972973 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 (9972973) 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, 14828 + ... + 15485.

It is an arithmetic number, because the mean of its divisors is an integer number (1455072).

Almost surely, 2^9972977 is an apocalyptic number.

It is an amenable number.

9972977 is a deficient number, since it is larger than the sum of its proper divisors (1667599).

9972977 is a wasteful number, since it uses less digits than its factorization.

9972977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30367.

The product of its digits is 500094, while the sum is 50.

The square root of 9972977 is about 3158.0020582641. The cubic root of 9972977 is about 215.2492296382.

The spelling of 9972977 in words is "nine million, nine hundred seventy-two thousand, nine hundred seventy-seven".