724468987 has 6 divisors (see below), whose sum is σ = 796317284. Its totient is φ = 658608060.

The previous prime is 724468967. The next prime is 724469003. The reversal of 724468987 is 789864427.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-724468987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724468967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2993553 + ... + 2993794.

Almost surely, 2^724468987 is an apocalyptic number.

724468987 is a deficient number, since it is larger than the sum of its proper divisors (71848297).

724468987 is a wasteful number, since it uses less digits than its factorization.

724468987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987369 (or 5987358 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The square root of 724468987 is about 26915.9615655841. The cubic root of 724468987 is about 898.1315091054.

The spelling of 724468987 in words is "seven hundred twenty-four million, four hundred sixty-eight thousand, nine hundred eighty-seven".