489187965 has 64 divisors (see below), whose sum is σ = 954777600. Its totient is φ = 208894464.

The previous prime is 489187949. The next prime is 489187981. The reversal of 489187965 is 569781984.

It is an interprime number because it is at equal distance from previous prime (489187949) and next prime (489187981).

It is not a de Polignac number, because 489187965 - 2⁴ = 489187949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143956 + ... + 147314.

It is an arithmetic number, because the mean of its divisors is an integer number (14918400).

Almost surely, 2^489187965 is an apocalyptic number.

It is an amenable number.

489187965 is a deficient number, since it is larger than the sum of its proper divisors (465589635).

489187965 is a wasteful number, since it uses less digits than its factorization.

489187965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466.

The product of its digits is 4354560, while the sum is 57.

The square root of 489187965 is about 22117.5940147205. The cubic root of 489187965 is about 787.9377742312.

The spelling of 489187965 in words is "four hundred eighty-nine million, one hundred eighty-seven thousand, nine hundred sixty-five".