105421670 has 16 divisors (see below), whose sum is σ = 196302960. Its totient is φ = 40714464.

The previous prime is 105421663. The next prime is 105421691. The reversal of 105421670 is 76124501.

It is a super-2 number, since 2×105421670² = 22227457011177800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181472 + ... + 182051.

It is an arithmetic number, because the mean of its divisors is an integer number (12268935).

Almost surely, 2^105421670 is an apocalyptic number.

105421670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105421670 is a deficient number, since it is larger than the sum of its proper divisors (90881290).

105421670 is a wasteful number, since it uses less digits than its factorization.

105421670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363559.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 105421670 is about 10267.5055393216. The cubic root of 105421670 is about 472.4000815193.

The spelling of 105421670 in words is "one hundred five million, four hundred twenty-one thousand, six hundred seventy".