1487432897 has 4 divisors (see below), whose sum is σ = 1509633456. Its totient is φ = 1465232340.

The previous prime is 1487432887. The next prime is 1487432927. The reversal of 1487432897 is 7982347841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487432897 is a prime.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11100179 + ... + 11100312.

It is an arithmetic number, because the mean of its divisors is an integer number (377408364).

Almost surely, 2^1487432897 is an apocalyptic number.

It is an amenable number.

1487432897 is a deficient number, since it is larger than the sum of its proper divisors (22200559).

1487432897 is an equidigital number, since it uses as much as digits as its factorization.

1487432897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22200558.

The product of its digits is 2709504, while the sum is 53.

The square root of 1487432897 is about 38567.2516132534. The cubic root of 1487432897 is about 1141.5084414985.

The spelling of 1487432897 in words is "one billion, four hundred eighty-seven million, four hundred thirty-two thousand, eight hundred ninety-seven".