84249311 has 2 divisors, whose sum is σ = 84249312. Its totient is φ = 84249310.

The previous prime is 84249307. The next prime is 84249317. The reversal of 84249311 is 11394248.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84249311 - 2² = 84249307 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84249317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42124655 + 42124656.

It is an arithmetic number, because the mean of its divisors is an integer number (42124656).

Almost surely, 2^84249311 is an apocalyptic number.

84249311 is a deficient number, since it is larger than the sum of its proper divisors (1).

84249311 is an equidigital number, since it uses as much as digits as its factorization.

84249311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 84249311 is about 9178.7423430446. The cubic root of 84249311 is about 438.3847647279.

The spelling of 84249311 in words is "eighty-four million, two hundred forty-nine thousand, three hundred eleven".