972799 has 2 divisors, whose sum is σ = 972800. Its totient is φ = 972798.

The previous prime is 972793. The next prime is 972823. The reversal of 972799 is 997279.

It is a weak prime.

It is an emirp because it is prime and its reverse (997279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 972799 - 2¹⁵ = 940031 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486399 + 486400.

It is an arithmetic number, because the mean of its divisors is an integer number (486400).

2⁹⁷²⁷⁹⁹ is an apocalyptic number.

972799 is a deficient number, since it is larger than the sum of its proper divisors (1).

972799 is an equidigital number, since it uses as much as digits as its factorization.

972799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442, while the sum is 43.

The square root of 972799 is about 986.3057335330. The cubic root of 972799 is about 99.0849524186.

It can be divided in two parts, 972 and 799, that added together give a palindrome (1771).

The spelling of 972799 in words is "nine hundred seventy-two thousand, seven hundred ninety-nine".