972166 has 16 divisors (see below), whose sum is σ = 1587600. Its totient is φ = 443808.

The previous prime is 972163. The next prime is 972197. The reversal of 972166 is 661279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972161) 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, 3480 + ... + 3748.

It is an arithmetic number, because the mean of its divisors is an integer number (99225).

2⁹⁷²¹⁶⁶ is an apocalyptic number.

972166 is a deficient number, since it is larger than the sum of its proper divisors (615434).

972166 is a wasteful number, since it uses less digits than its factorization.

972166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 4536, while the sum is 31.

The square root of 972166 is about 985.9847869009. The cubic root of 972166 is about 99.0634562397.

The spelling of 972166 in words is "nine hundred seventy-two thousand, one hundred sixty-six".