1487831863 has 16 divisors (see below), whose sum is σ = 1799930880. Its totient is φ = 1202666976.

The previous prime is 1487831831. The next prime is 1487831911. The reversal of 1487831863 is 3681387841.

It is a happy number.

It is not a de Polignac number, because 1487831863 - 2⁵ = 1487831831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1487831063) 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, 76495 + ... + 93952.

It is an arithmetic number, because the mean of its divisors is an integer number (112495680).

Almost surely, 2^1487831863 is an apocalyptic number.

1487831863 is a deficient number, since it is larger than the sum of its proper divisors (312099017).

1487831863 is a wasteful number, since it uses less digits than its factorization.

1487831863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170526.

The product of its digits is 774144, while the sum is 49.

The square root of 1487831863 is about 38572.4236080649. The cubic root of 1487831863 is about 1141.6104925658.

The spelling of 1487831863 in words is "one billion, four hundred eighty-seven million, eight hundred thirty-one thousand, eight hundred sixty-three".