867517213 has 2 divisors, whose sum is σ = 867517214. Its totient is φ = 867517212.

The previous prime is 867517201. The next prime is 867517229. The reversal of 867517213 is 312715768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605012409 + 262504804 = 24597^2 + 16202^2 .

It is a cyclic number.

It is not a de Polignac number, because 867517213 - 2¹⁷ = 867386141 is a prime.

It is a super-2 number, since 2×867517213² = 1505172229702574738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867517283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433758606 + 433758607.

It is an arithmetic number, because the mean of its divisors is an integer number (433758607).

Almost surely, 2^867517213 is an apocalyptic number.

It is an amenable number.

867517213 is a deficient number, since it is larger than the sum of its proper divisors (1).

867517213 is an equidigital number, since it uses as much as digits as its factorization.

867517213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 40.

The square root of 867517213 is about 29453.6451564149. The cubic root of 867517213 is about 953.7312951963.

The spelling of 867517213 in words is "eight hundred sixty-seven million, five hundred seventeen thousand, two hundred thirteen".