489157965 has 24 divisors (see below), whose sum is σ = 850607160. Its totient is φ = 260043264.

The previous prime is 489157961. The next prime is 489158023. The reversal of 489157965 is 569751984.

489157965 is a `hidden beast` number, since 4 + 8 + 9 + 1 + 579 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 60419529 + 428738436 = 7773^2 + 20706^2 .

It is not a de Polignac number, because 489157965 - 2² = 489157961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489157961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3280 + ... + 31449.

It is an arithmetic number, because the mean of its divisors is an integer number (35441965).

Almost surely, 2^489157965 is an apocalyptic number.

489157965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

489157965 is a deficient number, since it is larger than the sum of its proper divisors (361449195).

489157965 is a wasteful number, since it uses less digits than its factorization.

489157965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35053 (or 35050 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 489157965 is about 22116.9158112066. The cubic root of 489157965 is about 787.9216668464.

The spelling of 489157965 in words is "four hundred eighty-nine million, one hundred fifty-seven thousand, nine hundred sixty-five".