1929486889 has 8 divisors (see below), whose sum is σ = 2144610432. Its totient is φ = 1720982640.

The previous prime is 1929486883. The next prime is 1929486919. The reversal of 1929486889 is 9886849291.

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 1929486889 - 2¹¹ = 1929484841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1929486889.

It is not an unprimeable number, because it can be changed into a prime (1929486883) 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, 1654209 + ... + 1655374.

It is an arithmetic number, because the mean of its divisors is an integer number (268076304).

Almost surely, 2^1929486889 is an apocalyptic number.

It is an amenable number.

1929486889 is a deficient number, since it is larger than the sum of its proper divisors (215123543).

1929486889 is a wasteful number, since it uses less digits than its factorization.

1929486889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309647.

The product of its digits is 17915904, while the sum is 64.

The square root of 1929486889 is about 43925.9250215633. The cubic root of 1929486889 is about 1244.9367212453.

The spelling of 1929486889 in words is "one billion, nine hundred twenty-nine million, four hundred eighty-six thousand, eight hundred eighty-nine".