720895651 has 8 divisors (see below), whose sum is σ = 824255744. Its totient is φ = 617629320.

The previous prime is 720895649. The next prime is 720895657. The reversal of 720895651 is 156598027.

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

It is not a de Polignac number, because 720895651 - 2¹ = 720895649 is a prime.

It is the 26850-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720895598 and 720895607.

It is not an unprimeable number, because it can be changed into a prime (720895657) by changing a digit.

It is a nontrivial repunit in base 26849.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6105 + ... + 38458.

It is an arithmetic number, because the mean of its divisors is an integer number (103031968).

Almost surely, 2^720895651 is an apocalyptic number.

720895651 is a deficient number, since it is larger than the sum of its proper divisors (103360093).

720895651 is a wasteful number, since it uses less digits than its factorization.

720895651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46881.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 720895651 is about 26849.5000139667. The cubic root of 720895651 is about 896.6524411140.

The spelling of 720895651 in words is "seven hundred twenty million, eight hundred ninety-five thousand, six hundred fifty-one".