1000672989 has 8 divisors (see below), whose sum is σ = 1412714880. Its totient is φ = 627873216.

The previous prime is 1000672951. The next prime is 1000672991. The reversal of 1000672989 is 9892760001.

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

It is not a de Polignac number, because 1000672989 - 2¹⁹ = 1000148701 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000672989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000672919) 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, 9810469 + ... + 9810570.

It is an arithmetic number, because the mean of its divisors is an integer number (176589360).

Almost surely, 2^1000672989 is an apocalyptic number.

It is an amenable number.

1000672989 is a deficient number, since it is larger than the sum of its proper divisors (412041891).

1000672989 is a wasteful number, since it uses less digits than its factorization.

1000672989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19621059.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1000672989 is about 31633.4157023866. The cubic root of 1000672989 is about 1000.2242793617.

The spelling of 1000672989 in words is "one billion, six hundred seventy-two thousand, nine hundred eighty-nine".