105698399 has 2 divisors, whose sum is σ = 105698400. Its totient is φ = 105698398.

The previous prime is 105698393. The next prime is 105698413. The reversal of 105698399 is 993896501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105698399 - 2⁸ = 105698143 is a prime.

It is a super-2 number, since 2×105698399² = 22344303102326402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105698393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52849199 + 52849200.

It is an arithmetic number, because the mean of its divisors is an integer number (52849200).

Almost surely, 2^105698399 is an apocalyptic number.

105698399 is a deficient number, since it is larger than the sum of its proper divisors (1).

105698399 is an equidigital number, since it uses as much as digits as its factorization.

105698399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 105698399 is about 10280.9726679921. The cubic root of 105698399 is about 472.8130661360.

The spelling of 105698399 in words is "one hundred five million, six hundred ninety-eight thousand, three hundred ninety-nine".