1030439887 has 4 divisors (see below), whose sum is σ = 1091054016. Its totient is φ = 969825760.

The previous prime is 1030439869. The next prime is 1030439903. The reversal of 1030439887 is 7889340301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7889340301 = 12547 ⋅628783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030439887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030439867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30307039 + ... + 30307072.

It is an arithmetic number, because the mean of its divisors is an integer number (272763504).

Almost surely, 2^1030439887 is an apocalyptic number.

1030439887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1030439887 is a deficient number, since it is larger than the sum of its proper divisors (60614129).

1030439887 is an equidigital number, since it uses as much as digits as its factorization.

1030439887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60614128.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1030439887 is about 32100.4655262194. The cubic root of 1030439887 is about 1010.0453814200.

The spelling of 1030439887 in words is "one billion, thirty million, four hundred thirty-nine thousand, eight hundred eighty-seven".