720656041 has 8 divisors (see below), whose sum is σ = 823820544. Its totient is φ = 617544960.

The previous prime is 720656023. The next prime is 720656059. The reversal of 720656041 is 140656027.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (720656023) and next prime (720656059).

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

It is a cyclic number.

It is not a de Polignac number, because 720656041 - 2¹³ = 720647849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720655994 and 720656012.

It is not an unprimeable number, because it can be changed into a prime (720656341) 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, 21696 + ... + 43726.

It is an arithmetic number, because the mean of its divisors is an integer number (102977568).

Almost surely, 2^720656041 is an apocalyptic number.

It is an amenable number.

720656041 is a deficient number, since it is larger than the sum of its proper divisors (103164503).

720656041 is a wasteful number, since it uses less digits than its factorization.

720656041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26711.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 720656041 is about 26845.0375488655. The cubic root of 720656041 is about 896.5530875302.

The spelling of 720656041 in words is "seven hundred twenty million, six hundred fifty-six thousand, forty-one".