84458761 has 2 divisors, whose sum is σ = 84458762. Its totient is φ = 84458760.

The previous prime is 84458749. The next prime is 84458767. The reversal of 84458761 is 16785448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 39300361 = 6720^2 + 6269^2 .

It is a cyclic number.

It is not a de Polignac number, because 84458761 - 2²³ = 76070153 is a prime.

It is not a weakly prime, because it can be changed into another prime (84458767) 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, 42229380 + 42229381.

It is an arithmetic number, because the mean of its divisors is an integer number (42229381).

Almost surely, 2^84458761 is an apocalyptic number.

It is an amenable number.

84458761 is a deficient number, since it is larger than the sum of its proper divisors (1).

84458761 is an equidigital number, since it uses as much as digits as its factorization.

84458761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 43.

The square root of 84458761 is about 9190.1447757911. The cubic root of 84458761 is about 438.7477497091.

The spelling of 84458761 in words is "eighty-four million, four hundred fifty-eight thousand, seven hundred sixty-one".