1499876989 has 8 divisors (see below), whose sum is σ = 1685480832. Its totient is φ = 1324305840.

The previous prime is 1499876947. The next prime is 1499877017. The reversal of 1499876989 is 9896789941.

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

It is a de Polignac number, because none of the positive numbers 2^k-1499876989 is a prime.

It is a super-2 number, since 2×1499876989² = 4499261964263412242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1499876909) 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, 2507857 + ... + 2508454.

It is an arithmetic number, because the mean of its divisors is an integer number (210685104).

Almost surely, 2^1499876989 is an apocalyptic number.

It is an amenable number.

1499876989 is a deficient number, since it is larger than the sum of its proper divisors (185603843).

1499876989 is a wasteful number, since it uses less digits than its factorization.

1499876989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016347.

The product of its digits is 70543872, while the sum is 70.

The square root of 1499876989 is about 38728.2453643333. The cubic root of 1499876989 is about 1144.6829500438.

The spelling of 1499876989 in words is "one billion, four hundred ninety-nine million, eight hundred seventy-six thousand, nine hundred eighty-nine".