1006499989 has 8 divisors (see below), whose sum is σ = 1103575968. Its totient is φ = 910353360.

The previous prime is 1006499981. The next prime is 1006499993. The reversal of 1006499989 is 9899946001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1006499989 - 2³ = 1006499981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006499981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230067 + ... + 234400.

It is an arithmetic number, because the mean of its divisors is an integer number (137946996).

Almost surely, 2^1006499989 is an apocalyptic number.

It is an amenable number.

1006499989 is a deficient number, since it is larger than the sum of its proper divisors (97075979).

1006499989 is a wasteful number, since it uses less digits than its factorization.

1006499989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464675.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 1006499989 is about 31725.3839850679. The cubic root of 1006499989 is about 1002.1619854504.

The spelling of 1006499989 in words is "one billion, six million, four hundred ninety-nine thousand, nine hundred eighty-nine".