106408749 has 8 divisors (see below), whose sum is σ = 142142752. Its totient is φ = 70806960.

The previous prime is 106408733. The next prime is 106408909. The reversal of 106408749 is 947804601.

It is a happy number.

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

It is not a de Polignac number, because 106408749 - 2⁴ = 106408733 is a prime.

It is a super-2 number, since 2×106408749² = 22645643727490002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106908749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31159 + ... + 34404.

It is an arithmetic number, because the mean of its divisors is an integer number (17767844).

Almost surely, 2^106408749 is an apocalyptic number.

It is an amenable number.

106408749 is a deficient number, since it is larger than the sum of its proper divisors (35734003).

106408749 is an equidigital number, since it uses as much as digits as its factorization.

106408749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66107.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 106408749 is about 10315.4616474494. The cubic root of 106408749 is about 473.8698880892.

The spelling of 106408749 in words is "one hundred six million, four hundred eight thousand, seven hundred forty-nine".