2859985477 has 2 divisors, whose sum is σ = 2859985478. Its totient is φ = 2859985476.

The previous prime is 2859985433. The next prime is 2859985483. The reversal of 2859985477 is 7745899582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2062431396 + 797554081 = 45414^2 + 28241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2859985477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2859989477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1429992738 + 1429992739.

It is an arithmetic number, because the mean of its divisors is an integer number (1429992739).

Almost surely, 2^2859985477 is an apocalyptic number.

It is an amenable number.

2859985477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2859985477 is an equidigital number, since it uses as much as digits as its factorization.

2859985477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 64.

The square root of 2859985477 is about 53478.8320459600. The cubic root of 2859985477 is about 1419.4538462066.

The spelling of 2859985477 in words is "two billion, eight hundred fifty-nine million, nine hundred eighty-five thousand, four hundred seventy-seven".