106439387 has 8 divisors (see below), whose sum is σ = 112323600. Its totient is φ = 100583424.

The previous prime is 106439383. The next prime is 106439401. The reversal of 106439387 is 783934601.

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 106439387 - 2² = 106439383 is a prime.

It is a super-2 number, since 2×106439387² = 22658686209871538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106439381) 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, 923 + ... + 14619.

It is an arithmetic number, because the mean of its divisors is an integer number (14040450).

Almost surely, 2^106439387 is an apocalyptic number.

106439387 is a deficient number, since it is larger than the sum of its proper divisors (5884213).

106439387 is a wasteful number, since it uses less digits than its factorization.

106439387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14125.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 106439387 is about 10316.9465928636. The cubic root of 106439387 is about 473.9153637748.

The spelling of 106439387 in words is "one hundred six million, four hundred thirty-nine thousand, three hundred eighty-seven".