84722377 has 2 divisors, whose sum is σ = 84722378. Its totient is φ = 84722376.

The previous prime is 84722329. The next prime is 84722401. The reversal of 84722377 is 77322748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75012921 + 9709456 = 8661^2 + 3116^2 .

It is a cyclic number.

It is not a de Polignac number, because 84722377 - 2¹⁵ = 84689609 is a prime.

It is not a weakly prime, because it can be changed into another prime (84722327) 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, 42361188 + 42361189.

It is an arithmetic number, because the mean of its divisors is an integer number (42361189).

Almost surely, 2^84722377 is an apocalyptic number.

It is an amenable number.

84722377 is a deficient number, since it is larger than the sum of its proper divisors (1).

84722377 is an equidigital number, since it uses as much as digits as its factorization.

84722377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 40.

The square root of 84722377 is about 9204.4759220718. The cubic root of 84722377 is about 439.2037545037.

The spelling of 84722377 in words is "eighty-four million, seven hundred twenty-two thousand, three hundred seventy-seven".