720564846 has 32 divisors (see below), whose sum is σ = 1493352960. Its totient is φ = 231626304.

The previous prime is 720564841. The next prime is 720564847. The reversal of 720564846 is 648465027.

It is a junction number, because it is equal to n+sod(n) for n = 720564798 and 720564807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720564841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2706 + ... + 38058.

It is an arithmetic number, because the mean of its divisors is an integer number (46667280).

Almost surely, 2^720564846 is an apocalyptic number.

720564846 is an abundant number, since it is smaller than the sum of its proper divisors (772788114).

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

720564846 is a wasteful number, since it uses less digits than its factorization.

720564846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35480.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 720564846 is about 26843.3389502871. The cubic root of 720564846 is about 896.5152680050.

The spelling of 720564846 in words is "seven hundred twenty million, five hundred sixty-four thousand, eight hundred forty-six".