860995517 has 2 divisors, whose sum is σ = 860995518. Its totient is φ = 860995516.

The previous prime is 860995463. The next prime is 860995567. The reversal of 860995517 is 715599068.

It is a happy number.

It is an a-pointer prime, because the next prime (860995567) can be obtained adding 860995517 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832841881 + 28153636 = 28859^2 + 5306^2 .

It is a cyclic number.

It is not a de Polignac number, because 860995517 - 2⁶ = 860995453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860995567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430497758 + 430497759.

It is an arithmetic number, because the mean of its divisors is an integer number (430497759).

Almost surely, 2^860995517 is an apocalyptic number.

It is an amenable number.

860995517 is a deficient number, since it is larger than the sum of its proper divisors (1).

860995517 is an equidigital number, since it uses as much as digits as its factorization.

860995517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 860995517 is about 29342.7251120273. The cubic root of 860995517 is about 951.3353398674.

The spelling of 860995517 in words is "eight hundred sixty million, nine hundred ninety-five thousand, five hundred seventeen".