1488647889 has 21 divisors (see below), whose sum is σ = 2233513803. Its totient is φ = 991737432.

The previous prime is 1488647863. The next prime is 1488647893. The reversal of 1488647889 is 9887468841.

The square root of 1488647889 is 38583.

It is a perfect power (a square), and thus also a powerful number.

1488647889 is a `hidden beast` number, since 1 + 4 + 8 + 86 + 478 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100340289 + 1388307600 = 10017^2 + 37260^2 .

It is not a de Polignac number, because 1488647889 - 2⁷ = 1488647761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1488647089) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1041027 + ... + 1042455.

Almost surely, 2^1488647889 is an apocalyptic number.

1488647889 is the 38583-rd square number.

1488647889 is the 19292-nd centered octagonal number.

It is an amenable number.

1488647889 is a deficient number, since it is larger than the sum of its proper divisors (744865914).

1488647889 is an frugal number, since it uses more digits than its factorization.

1488647889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876 (or 1432 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 63.

The cubic root of 1488647889 is about 1141.8191661408.

The spelling of 1488647889 in words is "one billion, four hundred eighty-eight million, six hundred forty-seven thousand, eight hundred eighty-nine".