106998509 has 8 divisors (see below), whose sum is σ = 108655680. Its totient is φ = 105346656.

The previous prime is 106998497. The next prime is 106998517. The reversal of 106998509 is 905899601.

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 106998509 - 2²⁴ = 90221293 is a prime.

It is a super-2 number, since 2×106998509² = 22897361856446162, 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 (106998569) 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, 60374 + ... + 62120.

It is an arithmetic number, because the mean of its divisors is an integer number (13581960).

Almost surely, 2^106998509 is an apocalyptic number.

It is an amenable number.

106998509 is a deficient number, since it is larger than the sum of its proper divisors (1657171).

106998509 is an equidigital number, since it uses as much as digits as its factorization.

106998509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 106998509 is about 10344.0083623323. The cubic root of 106998509 is about 474.7437347138.

The spelling of 106998509 in words is "one hundred six million, nine hundred ninety-eight thousand, five hundred nine".