1047887417 has 2 divisors, whose sum is σ = 1047887418. Its totient is φ = 1047887416.

The previous prime is 1047887387. The next prime is 1047887441. The reversal of 1047887417 is 7147887401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1047881641 + 5776 = 32371^2 + 76^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047887417 - 2¹² = 1047883321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1047887447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523943708 + 523943709.

It is an arithmetic number, because the mean of its divisors is an integer number (523943709).

Almost surely, 2^1047887417 is an apocalyptic number.

It is an amenable number.

1047887417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047887417 is an equidigital number, since it uses as much as digits as its factorization.

1047887417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 351232, while the sum is 47.

The square root of 1047887417 is about 32371.0892155330. The cubic root of 1047887417 is about 1015.7142414704.

The spelling of 1047887417 in words is "one billion, forty-seven million, eight hundred eighty-seven thousand, four hundred seventeen".