92870213 has 2 divisors, whose sum is σ = 92870214. Its totient is φ = 92870212.

The previous prime is 92870191. The next prime is 92870221. The reversal of 92870213 is 31207829.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91833889 + 1036324 = 9583^2 + 1018^2 .

It is an emirp because it is prime and its reverse (31207829) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 92870213 - 2¹² = 92866117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 92870213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92873213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46435106 + 46435107.

It is an arithmetic number, because the mean of its divisors is an integer number (46435107).

Almost surely, 2^92870213 is an apocalyptic number.

It is an amenable number.

92870213 is a deficient number, since it is larger than the sum of its proper divisors (1).

92870213 is an equidigital number, since it uses as much as digits as its factorization.

92870213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 92870213 is about 9636.9192691441. The cubic root of 92870213 is about 452.8546315947.

The spelling of 92870213 in words is "ninety-two million, eight hundred seventy thousand, two hundred thirteen".