1488584891 has 4 divisors (see below), whose sum is σ = 1512987984. Its totient is φ = 1464181800.

The previous prime is 1488584869. The next prime is 1488584899. The reversal of 1488584891 is 1984858841.

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 1488584891 - 2¹⁸ = 1488322747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1488584899) 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, 12201455 + ... + 12201576.

It is an arithmetic number, because the mean of its divisors is an integer number (378246996).

Almost surely, 2^1488584891 is an apocalyptic number.

1488584891 is a deficient number, since it is larger than the sum of its proper divisors (24403093).

1488584891 is an equidigital number, since it uses as much as digits as its factorization.

1488584891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24403092.

The product of its digits is 2949120, while the sum is 56.

The square root of 1488584891 is about 38582.1835955406. The cubic root of 1488584891 is about 1141.8030590549.

The spelling of 1488584891 in words is "one billion, four hundred eighty-eight million, five hundred eighty-four thousand, eight hundred ninety-one".