972823 has 2 divisors, whose sum is σ = 972824. Its totient is φ = 972822.

The previous prime is 972799. The next prime is 972827. The reversal of 972823 is 328279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 972823 - 2¹⁷ = 841751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972827) 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 as a sum of consecutive naturals, namely, 486411 + 486412.

It is an arithmetic number, because the mean of its divisors is an integer number (486412).

2⁹⁷²⁸²³ is an apocalyptic number.

972823 is a deficient number, since it is larger than the sum of its proper divisors (1).

972823 is an equidigital number, since it uses as much as digits as its factorization.

972823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 972823 is about 986.3179000708. The cubic root of 972823 is about 99.0857672561.

The spelling of 972823 in words is "nine hundred seventy-two thousand, eight hundred twenty-three".