3727161 has 32 divisors (see below), whose sum is σ = 5872640. Its totient is φ = 2332800.

The previous prime is 3727159. The next prime is 3727169. The reversal of 3727161 is 1617273.

It is not a de Polignac number, because 3727161 - 2¹ = 3727159 is a prime.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3727169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51021 + ... + 51093.

It is an arithmetic number, because the mean of its divisors is an integer number (183520).

Almost surely, 2^3727161 is an apocalyptic number.

3727161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3727161 is a deficient number, since it is larger than the sum of its proper divisors (2145479).

3727161 is a wasteful number, since it uses less digits than its factorization.

3727161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 168 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 3727161 is about 1930.5856624351. The cubic root of 3727161 is about 155.0455779943.

The spelling of 3727161 in words is "three million, seven hundred twenty-seven thousand, one hundred sixty-one".