720979914 has 16 divisors (see below), whose sum is σ = 1444602528. Its totient is φ = 239886192.

The previous prime is 720979913. The next prime is 720979943. The reversal of 720979914 is 419979027.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (720979913) 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 7 ways as a sum of consecutive naturals, for example, 106557 + ... + 113120.

It is an arithmetic number, because the mean of its divisors is an integer number (90287658).

Almost surely, 2^720979914 is an apocalyptic number.

720979914 is an abundant number, since it is smaller than the sum of its proper divisors (723622614).

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

720979914 is a wasteful number, since it uses less digits than its factorization.

720979914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220229.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 720979914 is about 26851.0691407251. The cubic root of 720979914 is about 896.6873752874.

The spelling of 720979914 in words is "seven hundred twenty million, nine hundred seventy-nine thousand, nine hundred fourteen".