105436979 has 2 divisors, whose sum is σ = 105436980. Its totient is φ = 105436978.

The previous prime is 105436973. The next prime is 105436987. The reversal of 105436979 is 979634501.

It is a weak prime.

It is an emirp because it is prime and its reverse (979634501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105436979 - 2¹² = 105432883 is a prime.

It is a super-2 number, since 2×105436979² = 22233913081292882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105436973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52718489 + 52718490.

It is an arithmetic number, because the mean of its divisors is an integer number (52718490).

Almost surely, 2^105436979 is an apocalyptic number.

105436979 is a deficient number, since it is larger than the sum of its proper divisors (1).

105436979 is an equidigital number, since it uses as much as digits as its factorization.

105436979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 105436979 is about 10268.2510195262. The cubic root of 105436979 is about 472.4229472256.

The spelling of 105436979 in words is "one hundred five million, four hundred thirty-six thousand, nine hundred seventy-nine".