8500920739 has 8 divisors (see below), whose sum is σ = 9001923840. Its totient is φ = 8005276296.

The previous prime is 8500920721. The next prime is 8500920761. The reversal of 8500920739 is 9370290058.

It is a happy number.

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 8500920739 - 2⁷ = 8500920611 is a prime.

It is a super-2 number, since 2×8500920739² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8500920695 and 8500920704.

It is not an unprimeable number, because it can be changed into a prime (8500920709) 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, 1336399 + ... + 1342744.

It is an arithmetic number, because the mean of its divisors is an integer number (1125240480).

Almost surely, 2^8500920739 is an apocalyptic number.

8500920739 is a deficient number, since it is larger than the sum of its proper divisors (501003101).

8500920739 is a wasteful number, since it uses less digits than its factorization.

8500920739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679329.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 8500920739 is about 92200.4378460319. The cubic root of 8500920739 is about 2040.9012372988.

The spelling of 8500920739 in words is "eight billion, five hundred million, nine hundred twenty thousand, seven hundred thirty-nine".