99436387 has 2 divisors, whose sum is σ = 99436388. Its totient is φ = 99436386.

The previous prime is 99436373. The next prime is 99436397. The reversal of 99436387 is 78363499.

It is a strong prime.

It is an emirp because it is prime and its reverse (78363499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99436387 - 2¹¹ = 99434339 is a prime.

It is a super-2 number, since 2×99436387² = 19775190119227538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99436387.

It is not a weakly prime, because it can be changed into another prime (99436307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49718193 + 49718194.

It is an arithmetic number, because the mean of its divisors is an integer number (49718194).

Almost surely, 2^99436387 is an apocalyptic number.

99436387 is a deficient number, since it is larger than the sum of its proper divisors (1).

99436387 is an equidigital number, since it uses as much as digits as its factorization.

99436387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The square root of 99436387 is about 9971.7795302544. The cubic root of 99436387 is about 463.2852200039.

The spelling of 99436387 in words is "ninety-nine million, four hundred thirty-six thousand, three hundred eighty-seven".