106431979 has 8 divisors (see below), whose sum is σ = 109327680. Its totient is φ = 103574856.

The previous prime is 106431967. The next prime is 106432013. The reversal of 106431979 is 979134601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106431979 - 2⁵ = 106431947 is a prime.

It is a super-2 number, since 2×106431979² = 22655532307712882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106431079) by changing a digit.

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, 4009 + ... + 15130.

It is an arithmetic number, because the mean of its divisors is an integer number (13665960).

Almost surely, 2^106431979 is an apocalyptic number.

106431979 is a deficient number, since it is larger than the sum of its proper divisors (2895701).

106431979 is an equidigital number, since it uses as much as digits as its factorization.

106431979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19289.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 106431979 is about 10316.5875656634. The cubic root of 106431979 is about 473.9043689524.

The spelling of 106431979 in words is "one hundred six million, four hundred thirty-one thousand, nine hundred seventy-nine".