489132947 has 4 divisors (see below), whose sum is σ = 489227640. Its totient is φ = 489038256.

The previous prime is 489132913. The next prime is 489132949. The reversal of 489132947 is 749231984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489132947 - 2¹² = 489128851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489132949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39122 + ... + 50087.

It is an arithmetic number, because the mean of its divisors is an integer number (122306910).

Almost surely, 2^489132947 is an apocalyptic number.

489132947 is a deficient number, since it is larger than the sum of its proper divisors (94693).

489132947 is an equidigital number, since it uses as much as digits as its factorization.

489132947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94692.

The product of its digits is 435456, while the sum is 47.

The square root of 489132947 is about 22116.3502187861. The cubic root of 489132947 is about 787.9082338576.

The spelling of 489132947 in words is "four hundred eighty-nine million, one hundred thirty-two thousand, nine hundred forty-seven".