120782797 has 2 divisors, whose sum is σ = 120782798. Its totient is φ = 120782796.

The previous prime is 120782747. The next prime is 120782801. The reversal of 120782797 is 797287021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120692196 + 90601 = 10986^2 + 301^2 .

It is an emirp because it is prime and its reverse (797287021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120782797 is a prime.

It is a super-2 number, since 2×120782797² = 29176968102286418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120782737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60391398 + 60391399.

It is an arithmetic number, because the mean of its divisors is an integer number (60391399).

Almost surely, 2^120782797 is an apocalyptic number.

It is an amenable number.

120782797 is a deficient number, since it is larger than the sum of its proper divisors (1).

120782797 is an equidigital number, since it uses as much as digits as its factorization.

120782797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 120782797 is about 10990.1227017718. The cubic root of 120782797 is about 494.3126152646.

The spelling of 120782797 in words is "one hundred twenty million, seven hundred eighty-two thousand, seven hundred ninety-seven".