99061619 has 2 divisors, whose sum is σ = 99061620. Its totient is φ = 99061618.

The previous prime is 99061609. The next prime is 99061639. The reversal of 99061619 is 91616099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99061619 - 2¹² = 99057523 is a prime.

It is a super-2 number, since 2×99061619² = 19626408717802322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99061609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49530809 + 49530810.

It is an arithmetic number, because the mean of its divisors is an integer number (49530810).

Almost surely, 2^99061619 is an apocalyptic number.

99061619 is a deficient number, since it is larger than the sum of its proper divisors (1).

99061619 is an equidigital number, since it uses as much as digits as its factorization.

99061619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 99061619 is about 9952.9703606511. The cubic root of 99061619 is about 462.7024586219.

The spelling of 99061619 in words is "ninety-nine million, sixty-one thousand, six hundred nineteen".