1487397888 has 132 divisors (see below), whose sum is σ = 4318645968. Its totient is φ = 493056000.

The previous prime is 1487397851. The next prime is 1487397889. The reversal of 1487397888 is 8887937841.

1487397888 is a `hidden beast` number, since 1 + 487 + 3 + 9 + 78 + 88 = 666.

It is not an unprimeable number, because it can be changed into a prime (1487397889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2312895 + ... + 2313537.

Almost surely, 2^1487397888 is an apocalyptic number.

1487397888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1487397888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159322984).

1487397888 is an abundant number, since it is smaller than the sum of its proper divisors (2831248080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1487397888 is a wasteful number, since it uses less digits than its factorization.

1487397888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 899 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 63.

The square root of 1487397888 is about 38566.7977410622. The cubic root of 1487397888 is about 1141.4994857146.

The spelling of 1487397888 in words is "one billion, four hundred eighty-seven million, three hundred ninety-seven thousand, eight hundred eighty-eight".