972091 has 2 divisors, whose sum is σ = 972092. Its totient is φ = 972090.

The previous prime is 972079. The next prime is 972113. The reversal of 972091 is 190279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 972091 - 2¹¹ = 970043 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (972001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486045 + 486046.

It is an arithmetic number, because the mean of its divisors is an integer number (486046).

2⁹⁷²⁰⁹¹ is an apocalyptic number.

972091 is a deficient number, since it is larger than the sum of its proper divisors (1).

972091 is an equidigital number, since it uses as much as digits as its factorization.

972091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 972091 is about 985.9467531262. The cubic root of 972091 is about 99.0609086809.

The spelling of 972091 in words is "nine hundred seventy-two thousand, ninety-one".