1607663489 has 8 divisors (see below), whose sum is σ = 1653326400. Its totient is φ = 1562376816.

The previous prime is 1607663471. The next prime is 1607663501. The reversal of 1607663489 is 9843667061.

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 1607663489 - 2²⁰ = 1606614913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1607663989) 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, 85382 + ... + 102495.

It is an arithmetic number, because the mean of its divisors is an integer number (206665800).

Almost surely, 2^1607663489 is an apocalyptic number.

It is an amenable number.

1607663489 is a deficient number, since it is larger than the sum of its proper divisors (45662911).

1607663489 is a wasteful number, since it uses less digits than its factorization.

1607663489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188119.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 1607663489 is about 40095.6791811786. The cubic root of 1607663489 is about 1171.4714700070.

The spelling of 1607663489 in words is "one billion, six hundred seven million, six hundred sixty-three thousand, four hundred eighty-nine".