106679988 has 18 divisors (see below), whose sum is σ = 269663394. Its totient is φ = 35559984.

The previous prime is 106679933. The next prime is 106680001. The reversal of 106679988 is 889976601.

It can be written as a sum of positive squares in only one way, i.e., 98962704 + 7717284 = 9948^2 + 2778^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×106679988² = 22761239679360288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1481631 + ... + 1481702.

Almost surely, 2^106679988 is an apocalyptic number.

106679988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

106679988 is an abundant number, since it is smaller than the sum of its proper divisors (162983406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106679988 is a wasteful number, since it uses less digits than its factorization.

106679988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963343 (or 2963338 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 106679988 is about 10328.6004860291. The cubic root of 106679988 is about 474.2721825108.

The spelling of 106679988 in words is "one hundred six million, six hundred seventy-nine thousand, nine hundred eighty-eight".