105554879 has 4 divisors (see below), whose sum is σ = 105621384. Its totient is φ = 105488376.

The previous prime is 105554863. The next prime is 105554909. The reversal of 105554879 is 978455501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978455501 = 1913 ⋅511477.

It is a cyclic number.

It is not a de Polignac number, because 105554879 - 2⁴ = 105554863 is a prime.

It is a super-2 number, since 2×105554879² = 22283664961409282, 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 (105554849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30812 + ... + 34065.

It is an arithmetic number, because the mean of its divisors is an integer number (26405346).

Almost surely, 2^105554879 is an apocalyptic number.

105554879 is a deficient number, since it is larger than the sum of its proper divisors (66505).

105554879 is an equidigital number, since it uses as much as digits as its factorization.

105554879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66504.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 105554879 is about 10273.9904126878. The cubic root of 105554879 is about 472.5989699647.

The spelling of 105554879 in words is "one hundred five million, five hundred fifty-four thousand, eight hundred seventy-nine".