84149077 has 2 divisors, whose sum is σ = 84149078. Its totient is φ = 84149076.

The previous prime is 84149033. The next prime is 84149089. The reversal of 84149077 is 77094148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79014321 + 5134756 = 8889^2 + 2266^2 .

It is a cyclic number.

It is not a de Polignac number, because 84149077 - 2⁷ = 84148949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84149477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42074538 + 42074539.

It is an arithmetic number, because the mean of its divisors is an integer number (42074539).

Almost surely, 2^84149077 is an apocalyptic number.

It is an amenable number.

84149077 is a deficient number, since it is larger than the sum of its proper divisors (1).

84149077 is an equidigital number, since it uses as much as digits as its factorization.

84149077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 84149077 is about 9173.2806018349. The cubic root of 84149077 is about 438.2108424507.

The spelling of 84149077 in words is "eighty-four million, one hundred forty-nine thousand, seventy-seven".