106404399 has 6 divisors (see below), whose sum is σ = 153695256. Its totient is φ = 70936260.

The previous prime is 106404379. The next prime is 106404401. The reversal of 106404399 is 993404601.

106404399 is a `hidden beast` number, since 1 + 0 + 640 + 4 + 3 + 9 + 9 = 666.

It is not a de Polignac number, because 106404399 - 2⁵ = 106404367 is a prime.

It is a super-2 number, since 2×106404399² = 22643792253102402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106404349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5911347 + ... + 5911364.

It is an arithmetic number, because the mean of its divisors is an integer number (25615876).

Almost surely, 2^106404399 is an apocalyptic number.

106404399 is a deficient number, since it is larger than the sum of its proper divisors (47290857).

106404399 is a wasteful number, since it uses less digits than its factorization.

106404399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11822717 (or 11822714 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 106404399 is about 10315.2507967572. The cubic root of 106404399 is about 473.8634307189.

The spelling of 106404399 in words is "one hundred six million, four hundred four thousand, three hundred ninety-nine".