2015047889 has 2 divisors, whose sum is σ = 2015047890. Its totient is φ = 2015047888.

The previous prime is 2015047819. The next prime is 2015047939. The reversal of 2015047889 is 9887405102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009650625 + 1005397264 = 31775^2 + 31708^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015047889 - 2¹⁶ = 2014982353 is a prime.

It is not a weakly prime, because it can be changed into another prime (2015047819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007523944 + 1007523945.

It is an arithmetic number, because the mean of its divisors is an integer number (1007523945).

Almost surely, 2^2015047889 is an apocalyptic number.

It is an amenable number.

2015047889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015047889 is an equidigital number, since it uses as much as digits as its factorization.

2015047889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 2015047889 is about 44889.2847904709. The cubic root of 2015047889 is about 1263.0730166728.

The spelling of 2015047889 in words is "two billion, fifteen million, forty-seven thousand, eight hundred eighty-nine".