2169801 has 8 divisors (see below), whose sum is σ = 3214560. Its totient is φ = 1446516.

The previous prime is 2169799. The next prime is 2169803. The reversal of 2169801 is 1089612.

It is an interprime number because it is at equal distance from previous prime (2169799) and next prime (2169803).

It is not a de Polignac number, because 2169801 - 2¹ = 2169799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 80363 = 2169801 / (2 + 1 + 6 + 9 + 8 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (2169803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40155 + ... + 40208.

It is an arithmetic number, because the mean of its divisors is an integer number (401820).

2^2169801 is an apocalyptic number.

It is an amenable number.

2169801 is a deficient number, since it is larger than the sum of its proper divisors (1044759).

2169801 is an equidigital number, since it uses as much as digits as its factorization.

2169801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80372 (or 80366 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2169801 is about 1473.0244397158. The cubic root of 2169801 is about 129.4613013769.

The spelling of 2169801 in words is "two million, one hundred sixty-nine thousand, eight hundred one".