6427161 has 16 divisors (see below), whose sum is σ = 10254720. Its totient is φ = 3954960.

The previous prime is 6427121. The next prime is 6427171. The reversal of 6427161 is 1617246.

6427161 is a `hidden beast` number, since 642 + 7 + 16 + 1 = 666.

It is not a de Polignac number, because 6427161 - 2¹⁴ = 6410777 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6427121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8805 + ... + 9506.

It is an arithmetic number, because the mean of its divisors is an integer number (640920).

Almost surely, 2^6427161 is an apocalyptic number.

It is an amenable number.

6427161 is a deficient number, since it is larger than the sum of its proper divisors (3827559).

6427161 is a wasteful number, since it uses less digits than its factorization.

6427161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333 (or 18327 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 6427161 is about 2535.1846086627. The cubic root of 6427161 is about 185.9258289075.

It can be divided in two parts, 64 and 27161, that added together give a square (27225 = 165²).

The spelling of 6427161 in words is "six million, four hundred twenty-seven thousand, one hundred sixty-one".