105854839 has 4 divisors (see below), whose sum is σ = 106946224. Its totient is φ = 104763456.

The previous prime is 105854821. The next prime is 105854849. The reversal of 105854839 is 938458501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105854839 - 2⁷ = 105854711 is a prime.

It is a super-2 number, since 2×105854839² = 22410493879431842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105854795 and 105854804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105854849) 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, 545547 + ... + 545740.

It is an arithmetic number, because the mean of its divisors is an integer number (26736556).

Almost surely, 2^105854839 is an apocalyptic number.

105854839 is a deficient number, since it is larger than the sum of its proper divisors (1091385).

105854839 is an equidigital number, since it uses as much as digits as its factorization.

105854839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091384.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 105854839 is about 10288.5780844585. The cubic root of 105854839 is about 473.0462150923.

The spelling of 105854839 in words is "one hundred five million, eight hundred fifty-four thousand, eight hundred thirty-nine".