99335381 has 2 divisors, whose sum is σ = 99335382. Its totient is φ = 99335380.

The previous prime is 99335359. The next prime is 99335387. The reversal of 99335381 is 18353399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73376356 + 25959025 = 8566^2 + 5095^2 .

It is a cyclic number.

It is not a de Polignac number, because 99335381 - 2⁶ = 99335317 is a prime.

It is a super-2 number, since 2×99335381² = 19735035836830322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99335387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49667690 + 49667691.

It is an arithmetic number, because the mean of its divisors is an integer number (49667691).

Almost surely, 2^99335381 is an apocalyptic number.

It is an amenable number.

99335381 is a deficient number, since it is larger than the sum of its proper divisors (1).

99335381 is an equidigital number, since it uses as much as digits as its factorization.

99335381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 41.

The square root of 99335381 is about 9966.7136509483. The cubic root of 99335381 is about 463.1283007858.

The spelling of 99335381 in words is "ninety-nine million, three hundred thirty-five thousand, three hundred eighty-one".