720934 has 8 divisors (see below), whose sum is σ = 1096848. Its totient is φ = 355320.

The previous prime is 720931. The next prime is 720943. The reversal of 720934 is 439027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 720899 and 720908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397 + ... + 2680.

It is an arithmetic number, because the mean of its divisors is an integer number (137106).

2⁷²⁰⁹³⁴ is an apocalyptic number.

720934 is a deficient number, since it is larger than the sum of its proper divisors (375914).

720934 is a wasteful number, since it uses less digits than its factorization.

720934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 720934 is about 849.0783238312. The cubic root of 720934 is about 89.6668340371. Note that the first 3 decimals are identical.

The spelling of 720934 in words is "seven hundred twenty thousand, nine hundred thirty-four".