99815467 has 2 divisors, whose sum is σ = 99815468. Its totient is φ = 99815466.

The previous prime is 99815413. The next prime is 99815479. The reversal of 99815467 is 76451899.

It is a strong prime.

It is an emirp because it is prime and its reverse (76451899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99815467 - 2²³ = 91426859 is a prime.

It is a super-3 number, since 3×99815467³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99815467.

It is not a weakly prime, because it can be changed into another prime (99815407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49907733 + 49907734.

It is an arithmetic number, because the mean of its divisors is an integer number (49907734).

Almost surely, 2^99815467 is an apocalyptic number.

99815467 is a deficient number, since it is larger than the sum of its proper divisors (1).

99815467 is an equidigital number, since it uses as much as digits as its factorization.

99815467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 99815467 is about 9990.7690895146. The cubic root of 99815467 is about 463.8731987910.

The spelling of 99815467 in words is "ninety-nine million, eight hundred fifteen thousand, four hundred sixty-seven".