9401688 has 24 divisors (see below), whose sum is σ = 25463100. Its totient is φ = 3133872.

The previous prime is 9401647. The next prime is 9401699. The reversal of 9401688 is 8861049.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 65218 + ... + 65361.

Almost surely, 2^9401688 is an apocalyptic number.

It is an amenable number.

9401688 is an abundant number, since it is smaller than the sum of its proper divisors (16061412).

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

9401688 is a wasteful number, since it uses less digits than its factorization.

9401688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130591 (or 130584 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 9401688 is about 3066.2172134407. The cubic root of 9401688 is about 211.0580614832.

It can be divided in two parts, 940 and 1688, that added together give a triangular number (2628 = T₇₂).

The spelling of 9401688 in words is "nine million, four hundred one thousand, six hundred eighty-eight".