982977397 has 2 divisors, whose sum is σ = 982977398. Its totient is φ = 982977396.

The previous prime is 982977353. The next prime is 982977421. The reversal of 982977397 is 793779289.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555356356 + 427621041 = 23566^2 + 20679^2 .

It is a cyclic number.

It is not a de Polignac number, because 982977397 - 2⁷ = 982977269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (982977497) 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, 491488698 + 491488699.

It is an arithmetic number, because the mean of its divisors is an integer number (491488699).

Almost surely, 2^982977397 is an apocalyptic number.

It is an amenable number.

982977397 is a deficient number, since it is larger than the sum of its proper divisors (1).

982977397 is an equidigital number, since it uses as much as digits as its factorization.

982977397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12002256, while the sum is 61.

The square root of 982977397 is about 31352.4703492404. The cubic root of 982977397 is about 994.2932944610.

The spelling of 982977397 in words is "nine hundred eighty-two million, nine hundred seventy-seven thousand, three hundred ninety-seven".