84779741 has 2 divisors, whose sum is σ = 84779742. Its totient is φ = 84779740.

The previous prime is 84779711. The next prime is 84779777. The reversal of 84779741 is 14797748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78251716 + 6528025 = 8846^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 84779741 - 2¹⁰ = 84778717 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84779711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42389870 + 42389871.

It is an arithmetic number, because the mean of its divisors is an integer number (42389871).

Almost surely, 2^84779741 is an apocalyptic number.

It is an amenable number.

84779741 is a deficient number, since it is larger than the sum of its proper divisors (1).

84779741 is an equidigital number, since it uses as much as digits as its factorization.

84779741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 47.

The square root of 84779741 is about 9207.5914874629. The cubic root of 84779741 is about 439.3028577983.

The spelling of 84779741 in words is "eighty-four million, seven hundred seventy-nine thousand, seven hundred forty-one".