9166401 has 6 divisors (see below), whose sum is σ = 13240370. Its totient is φ = 6110928.

The previous prime is 9166393. The next prime is 9166427. The reversal of 9166401 is 1046619.

9166401 is a `hidden beast` number, since 9 + 16 + 640 + 1 = 666.

9166401 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 76176 = 3015^2 + 276^2 .

It is not a de Polignac number, because 9166401 - 2³ = 9166393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9166441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509236 + ... + 509253.

Almost surely, 2^9166401 is an apocalyptic number.

It is an amenable number.

9166401 is a deficient number, since it is larger than the sum of its proper divisors (4073969).

9166401 is a wasteful number, since it uses less digits than its factorization.

9166401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018495 (or 1018492 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9166401 is about 3027.6064803736. The cubic root of 9166401 is about 209.2825174390.

The spelling of 9166401 in words is "nine million, one hundred sixty-six thousand, four hundred one".