720683285 has 16 divisors (see below), whose sum is σ = 999475200. Its totient is φ = 488628096.

The previous prime is 720683239. The next prime is 720683291. The reversal of 720683285 is 582386027.

It is a cyclic number.

It is not a de Polignac number, because 720683285 - 2¹² = 720679189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112565 + ... + 118794.

It is an arithmetic number, because the mean of its divisors is an integer number (62467200).

Almost surely, 2^720683285 is an apocalyptic number.

It is an amenable number.

720683285 is a deficient number, since it is larger than the sum of its proper divisors (278791915).

720683285 is a wasteful number, since it uses less digits than its factorization.

720683285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231460.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 720683285 is about 26845.5449749116. The cubic root of 720683285 is about 896.5643852845.

The spelling of 720683285 in words is "seven hundred twenty million, six hundred eighty-three thousand, two hundred eighty-five".