724080987 has 18 divisors (see below), whose sum is σ = 1216653828. Its totient is φ = 413760312.

The previous prime is 724080979. The next prime is 724080989. The reversal of 724080987 is 789080427.

724080987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 724080987 - 2³ = 724080979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (724080989) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 820513 + ... + 821394.

Almost surely, 2^724080987 is an apocalyptic number.

724080987 is a deficient number, since it is larger than the sum of its proper divisors (492572841).

724080987 is a wasteful number, since it uses less digits than its factorization.

724080987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641927 (or 1641917 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 724080987 is about 26908.7529811398. The cubic root of 724080987 is about 897.9711446359.

The spelling of 724080987 in words is "seven hundred twenty-four million, eighty thousand, nine hundred eighty-seven".