720796735 has 4 divisors (see below), whose sum is σ = 864956088. Its totient is φ = 576637384.

The previous prime is 720796733. The next prime is 720796751. The reversal of 720796735 is 537697027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 537697027 = 7 ⋅76813861.

It is a cyclic number.

It is not a de Polignac number, because 720796735 - 2¹ = 720796733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720796733) 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, 72079669 + ... + 72079678.

It is an arithmetic number, because the mean of its divisors is an integer number (216239022).

Almost surely, 2^720796735 is an apocalyptic number.

720796735 is a deficient number, since it is larger than the sum of its proper divisors (144159353).

720796735 is a wasteful number, since it uses less digits than its factorization.

720796735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144159352.

The product of its (nonzero) digits is 555660, while the sum is 46.

The square root of 720796735 is about 26847.6579052997. The cubic root of 720796735 is about 896.6114285533.

The spelling of 720796735 in words is "seven hundred twenty million, seven hundred ninety-six thousand, seven hundred thirty-five".