86973087769 has 2 divisors, whose sum is σ = 86973087770. Its totient is φ = 86973087768.

The previous prime is 86973087737. The next prime is 86973087793. The reversal of 86973087769 is 96778037968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86973087744 + 25 = 294912^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 86973087769 - 2⁵ = 86973087737 is a prime.

It is a super-2 number, since 2×86973087769² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86973087698 and 86973087707.

It is not a weakly prime, because it can be changed into another prime (86971087769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43486543884 + 43486543885.

It is an arithmetic number, because the mean of its divisors is an integer number (43486543885).

Almost surely, 2^86973087769 is an apocalyptic number.

It is an amenable number.

86973087769 is a deficient number, since it is larger than the sum of its proper divisors (1).

86973087769 is an equidigital number, since it uses as much as digits as its factorization.

86973087769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192036096, while the sum is 70.

The spelling of 86973087769 in words is "eighty-six billion, nine hundred seventy-three million, eighty-seven thousand, seven hundred sixty-nine".