105979399 has 8 divisors (see below), whose sum is σ = 108018000. Its totient is φ = 103948992.

The previous prime is 105979381. The next prime is 105979403. The reversal of 105979399 is 993979501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105979399 - 2⁷ = 105979271 is a prime.

It is a super-2 number, since 2×105979399² = 22463266024802402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105979319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28267 + ... + 31795.

It is an arithmetic number, because the mean of its divisors is an integer number (13502250).

Almost surely, 2^105979399 is an apocalyptic number.

105979399 is a deficient number, since it is larger than the sum of its proper divisors (2038601).

105979399 is an equidigital number, since it uses as much as digits as its factorization.

105979399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097.

The product of its (nonzero) digits is 688905, while the sum is 52.

The square root of 105979399 is about 10294.6296193695. The cubic root of 105979399 is about 473.2316877662.

The spelling of 105979399 in words is "one hundred five million, nine hundred seventy-nine thousand, three hundred ninety-nine".