99677213 has 2 divisors, whose sum is σ = 99677214. Its totient is φ = 99677212.

The previous prime is 99677141. The next prime is 99677219. The reversal of 99677213 is 31277699.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71182969 + 28494244 = 8437^2 + 5338^2 .

It is an emirp because it is prime and its reverse (31277699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99677213 - 2²⁰ = 98628637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99677219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49838606 + 49838607.

It is an arithmetic number, because the mean of its divisors is an integer number (49838607).

Almost surely, 2^99677213 is an apocalyptic number.

It is an amenable number.

99677213 is a deficient number, since it is larger than the sum of its proper divisors (1).

99677213 is an equidigital number, since it uses as much as digits as its factorization.

99677213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 99677213 is about 9983.8476050068. The cubic root of 99677213 is about 463.6589302019.

The spelling of 99677213 in words is "ninety-nine million, six hundred seventy-seven thousand, two hundred thirteen".