720860934 has 16 divisors (see below), whose sum is σ = 1476886320. Its totient is φ = 234426240.

The previous prime is 720860909. The next prime is 720860939. The reversal of 720860934 is 439068027.

It is a junction number, because it is equal to n+sod(n) for n = 720860892 and 720860901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720860939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464919 + ... + 1465410.

It is an arithmetic number, because the mean of its divisors is an integer number (92305395).

Almost surely, 2^720860934 is an apocalyptic number.

720860934 is an abundant number, since it is smaller than the sum of its proper divisors (756025386).

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

720860934 is a wasteful number, since it uses less digits than its factorization.

720860934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930375.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 720860934 is about 26848.8534950750. The cubic root of 720860934 is about 896.6380471757.

The spelling of 720860934 in words is "seven hundred twenty million, eight hundred sixty thousand, nine hundred thirty-four".