1487432881 has 16 divisors (see below), whose sum is σ = 1697500800. Its totient is φ = 1290889600.

The previous prime is 1487432873. The next prime is 1487432887. The reversal of 1487432881 is 1882347841.

It is not a de Polignac number, because 1487432881 - 2³ = 1487432873 is a prime.

It is a super-2 number, since 2×1487432881² = 4424913150959920322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1487432887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2196 + ... + 54586.

It is an arithmetic number, because the mean of its divisors is an integer number (106093800).

Almost surely, 2^1487432881 is an apocalyptic number.

1487432881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1487432881 is a deficient number, since it is larger than the sum of its proper divisors (210067919).

1487432881 is a wasteful number, since it uses less digits than its factorization.

1487432881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52520.

The product of its digits is 344064, while the sum is 46.

The square root of 1487432881 is about 38567.2514058236. The cubic root of 1487432881 is about 1141.5084374055.

The spelling of 1487432881 in words is "one billion, four hundred eighty-seven million, four hundred thirty-two thousand, eight hundred eighty-one".