720134697 has 16 divisors (see below), whose sum is σ = 973831040. Its totient is φ = 473306112.

The previous prime is 720134683. The next prime is 720134711. The reversal of 720134697 is 796431027.

It is an interprime number because it is at equal distance from previous prime (720134683) and next prime (720134711).

It is not a de Polignac number, because 720134697 - 2¹¹ = 720132649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720134617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65673 + ... + 75849.

It is an arithmetic number, because the mean of its divisors is an integer number (60864440).

Almost surely, 2^720134697 is an apocalyptic number.

It is an amenable number.

720134697 is a deficient number, since it is larger than the sum of its proper divisors (253696343).

720134697 is a wasteful number, since it uses less digits than its factorization.

720134697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 720134697 is about 26835.3255430226. The cubic root of 720134697 is about 896.3368376574.

The spelling of 720134697 in words is "seven hundred twenty million, one hundred thirty-four thousand, six hundred ninety-seven".