1047887387 has 2 divisors, whose sum is σ = 1047887388. Its totient is φ = 1047887386.

The previous prime is 1047887371. The next prime is 1047887417. The reversal of 1047887387 is 7837887401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1047887387 - 2⁴ = 1047887371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1047887317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523943693 + 523943694.

It is an arithmetic number, because the mean of its divisors is an integer number (523943694).

Almost surely, 2^1047887387 is an apocalyptic number.

1047887387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047887387 is an equidigital number, since it uses as much as digits as its factorization.

1047887387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2107392, while the sum is 53.

The square root of 1047887387 is about 32371.0887521566. The cubic root of 1047887387 is about 1015.7142317775.

The spelling of 1047887387 in words is "one billion, forty-seven million, eight hundred eighty-seven thousand, three hundred eighty-seven".