1048739987 has 2 divisors, whose sum is σ = 1048739988. Its totient is φ = 1048739986.

The previous prime is 1048739981. The next prime is 1048740059. The reversal of 1048739987 is 7899378401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1048739987 - 2⁴ = 1048739971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1048739981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524369993 + 524369994.

It is an arithmetic number, because the mean of its divisors is an integer number (524369994).

Almost surely, 2^1048739987 is an apocalyptic number.

1048739987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048739987 is an equidigital number, since it uses as much as digits as its factorization.

1048739987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The square root of 1048739987 is about 32384.2552330604. The cubic root of 1048739987 is about 1015.9896313422.

The spelling of 1048739987 in words is "one billion, forty-eight million, seven hundred thirty-nine thousand, nine hundred eighty-seven".