1671389489 has 16 divisors (see below), whose sum is σ = 2132275200. Its totient is φ = 1272090960.

The previous prime is 1671389429. The next prime is 1671389539. The reversal of 1671389489 is 9849831761.

It is not a de Polignac number, because 1671389489 - 2⁸ = 1671389233 is a prime.

It is a super-2 number, since 2×1671389489² = 5587085647879362242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1671389429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249089 + ... + 255710.

It is an arithmetic number, because the mean of its divisors is an integer number (133267200).

Almost surely, 2^1671389489 is an apocalyptic number.

It is an amenable number.

1671389489 is a deficient number, since it is larger than the sum of its proper divisors (460885711).

1671389489 is a wasteful number, since it uses less digits than its factorization.

1671389489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504860.

The product of its digits is 2612736, while the sum is 56.

The square root of 1671389489 is about 40882.6306516594. The cubic root of 1671389489 is about 1186.7499503454.

The spelling of 1671389489 in words is "one billion, six hundred seventy-one million, three hundred eighty-nine thousand, four hundred eighty-nine".