8500920741 has 6 divisors (see below), whose sum is σ = 12279107750. Its totient is φ = 5667280488.

The previous prime is 8500920721. The next prime is 8500920761. The reversal of 8500920741 is 1470290058.

It is an interprime number because it is at equal distance from previous prime (8500920721) and next prime (8500920761).

It can be written as a sum of positive squares in only one way, i.e., 7948435716 + 552485025 = 89154^2 + 23505^2 .

It is not a de Polignac number, because 8500920741 - 2⁵ = 8500920709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8500920696 and 8500920705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500920721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 472273366 + ... + 472273383.

Almost surely, 2^8500920741 is an apocalyptic number.

It is an amenable number.

8500920741 is a deficient number, since it is larger than the sum of its proper divisors (3778187009).

8500920741 is a wasteful number, since it uses less digits than its factorization.

8500920741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944546755 (or 944546752 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 8500920741 is about 92200.4378568779. The cubic root of 8500920741 is about 2040.9012374589.

The spelling of 8500920741 in words is "eight billion, five hundred million, nine hundred twenty thousand, seven hundred forty-one".