106421433 has 4 divisors (see below), whose sum is σ = 141895248. Its totient is φ = 70947620.

The previous prime is 106421423. The next prime is 106421443. The reversal of 106421433 is 334124601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (106421423) and next prime (106421443).

It is a cyclic number.

It is not a de Polignac number, because 106421433 - 2⁸ = 106421177 is a prime.

It is a super-2 number, since 2×106421433² = 22651042803546978, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (106421423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17736903 + ... + 17736908.

It is an arithmetic number, because the mean of its divisors is an integer number (35473812).

Almost surely, 2^106421433 is an apocalyptic number.

It is an amenable number.

106421433 is a deficient number, since it is larger than the sum of its proper divisors (35473815).

106421433 is an equidigital number, since it uses as much as digits as its factorization.

106421433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35473814.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 106421433 is about 10316.0764343814. The cubic root of 106421433 is about 473.8887158859. Note that the first 3 decimals are identical.

The spelling of 106421433 in words is "one hundred six million, four hundred twenty-one thousand, four hundred thirty-three".