720582345 has 64 divisors (see below), whose sum is σ = 1481840640. Its totient is φ = 325404864.

The previous prime is 720582311. The next prime is 720582361. The reversal of 720582345 is 543285027.

720582345 is a `hidden beast` number, since 72 + 0 + 582 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 720582345 - 2⁹ = 720581833 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 73842 + ... + 83028.

It is an arithmetic number, because the mean of its divisors is an integer number (23153760).

Almost surely, 2^720582345 is an apocalyptic number.

It is an amenable number.

720582345 is an abundant number, since it is smaller than the sum of its proper divisors (761258295).

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

720582345 is a wasteful number, since it uses less digits than its factorization.

720582345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9291 (or 9285 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 720582345 is about 26843.6648950921. The cubic root of 720582345 is about 896.5225252717.

The spelling of 720582345 in words is "seven hundred twenty million, five hundred eighty-two thousand, three hundred forty-five".