8705152073 has 4 divisors (see below), whose sum is σ = 9217219860. Its totient is φ = 8193084288.

The previous prime is 8705152069. The next prime is 8705152091. The reversal of 8705152073 is 3702515078.

It is a happy number.

8705152073 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7438717504 + 1266434569 = 86248^2 + 35587^2 .

It is a cyclic number.

It is not a de Polignac number, because 8705152073 - 2² = 8705152069 is a prime.

It is a super-2 number, since 2×8705152073² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8705152013) 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, 256033868 + ... + 256033901.

It is an arithmetic number, because the mean of its divisors is an integer number (2304304965).

Almost surely, 2^8705152073 is an apocalyptic number.

It is an amenable number.

8705152073 is a deficient number, since it is larger than the sum of its proper divisors (512067787).

8705152073 is a wasteful number, since it uses less digits than its factorization.

8705152073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512067786.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 8705152073 is about 93301.4044535236. The cubic root of 8705152073 is about 2057.1160253883.

The spelling of 8705152073 in words is "eight billion, seven hundred five million, one hundred fifty-two thousand, seventy-three".