720683007 has 32 divisors (see below), whose sum is σ = 1079046144. Its totient is φ = 424101600.

The previous prime is 720682999. The next prime is 720683027. The reversal of 720683007 is 700386027.

It is not a de Polignac number, because 720683007 - 2³ = 720682999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720683027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201408 + ... + 204954.

It is an arithmetic number, because the mean of its divisors is an integer number (33720192).

Almost surely, 2^720683007 is an apocalyptic number.

720683007 is a deficient number, since it is larger than the sum of its proper divisors (358363137).

720683007 is a wasteful number, since it uses less digits than its factorization.

720683007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 720683007 is about 26845.5397971432. The cubic root of 720683007 is about 896.5642700027.

The spelling of 720683007 in words is "seven hundred twenty million, six hundred eighty-three thousand, seven".